{"id":24229,"date":"2023-01-25T15:15:35","date_gmt":"2023-01-25T14:15:35","guid":{"rendered":"https:\/\/www.discoverwildlife.com\/?p=70124"},"modified":"2023-01-25T15:35:55","modified_gmt":"2023-01-25T14:35:55","slug":"how-do-birds-fly","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/rss_feed\/how-do-birds-fly\/","title":{"rendered":"How do birds fly?"},"content":{"rendered":"<p class=\"rssexcerpt\"><\/p><p class=\"rssauthor\">By BBC Wildlife Magazine\n                \t\t<\/p><p class=\"rssbyline\">Published: Wednesday, 25 January 2023 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body> <p class=\"&quot;p1&quot;\">Flight gives birds a fairly big set of advantages over other animals. It enables them to forage over a wide area and to catch food on the wing. They can migrate between regions, to take full advantage of seasonal gluts and avoid the coldest weather. Taking to the skies is also a fantastic way to escape predators and to find safe nesting sites to raise their young. Some species even use aerial displays to court mates.<\/p>\n<section class=\"&quot;highlight\"><div class=\"&quot;highlight__content\" editor-content=\"\"> <ul><li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/how-high-do-birds-fly\/&quot;\">How high do birds fly?<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/how-do-birds-sing\/&quot;\">How do birds sing?<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/smallest-birds-in-the-world\/&quot;\">10 smallest birds in the world<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/heaviest-flying-bird\/&quot;\">What is the world\u2019s heaviest flying bird?<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/bird-dentifier-charts\/&quot;\">Best bird identifier charts<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/how-do-birds-migrate\/&quot;\">How do birds know when and where to migrate?<\/a><\/strong><\/li>\n<\/ul><p> <\/p><\/div> <\/section><p class=\"&quot;p2&quot;\">With all these benefits, it\u2019s no wonder that birds thrived once they mastered flight. But it took an impressive set of physical adaptations before birds could conquer the skies.<\/p>\n<h2 class=\"&quot;p2&quot;\">What do birds need to fly?<\/h2>\n<p class=\"&quot;p1&quot;\">To take to the air, a bird needs:<\/p>\n<h3 class=\"&quot;p1&quot;\">Wings<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/h3>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">These elongated limb and \u2018finger\u2019 bones are the ideal frame for feathers. They help to create an aerofoil \u2013 similar to the shape of an aeroplane\u2019s wing \u2013 which generates lift as the bird flies.<\/span><\/p>\n<h3 class=\"&quot;p1&quot;\">Streamlined body<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/h3>\n<p class=\"&quot;p1&quot;\">An elongated shape reduces resistance through the air.<\/p>\n<h3 class=\"&quot;p1&quot;\">Feathers<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/h3>\n<p class=\"&quot;p1&quot;\">Lightweight, strong and flexible, feathers provide both the wing surface to allow flight and an insulating layer to keep the bird warm and dry. Their shape and coloration may also act as camouflage from predators or, especially in males, be used to attract mates.<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/p>\n<h3 class=\"&quot;p1&quot;\">Lightweight skeleton<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/h3>\n<p class=\"&quot;p1&quot;\">Fewer and lighter bones (partially hollow in some of the larger species) reduce the bird\u2019s overall weight, to make flight easier.<\/p>\n<h3 class=\"&quot;p1&quot;\">Concentrated centre of gravity<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/h3>\n<p class=\"&quot;p1&quot;\">Most of the bird\u2019s muscles and vital organs are located in the centre of its body to provide balance.<\/p>\n<h2>How do birds fly?<\/h2>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=300%2C58,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=300%2C58,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=355%2C69,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=355%2C69,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=405%2C78,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=405%2C78,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=554%2C107,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=554%2C107,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=620%2C120,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=620%2C120,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=408%2C79,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=408%2C79,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?webp=true&amp;quality=90&amp;resize=556%2C107,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=556%2C107,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-73608\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/flight-sequence-15195ea.jpg?quality=90&amp;resize=620%2C120&quot;\" width=\"&quot;4724&quot;\" height=\"&quot;913&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">In flight, a bird pulls its wings down using its strong pectoral (chest) muscles, then pushes them up again with its smaller supracoracoideus (wing) muscles. This thrusts the bird forwards and upwards, creating airflow over its wings. The curved shape of the wings creates an area of low pressure in the airflow above them and high pressure below. This pressure difference creates an upward force called \u2018lift\u2019.<\/span><\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=300%2C344&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=300%2C344&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=355%2C407&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=355%2C407&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=405%2C464&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=405%2C464&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=554%2C635&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=554%2C635&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=595%2C682&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=595%2C682&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=408%2C468&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=408%2C468&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?webp=true&amp;quality=90&amp;resize=556%2C637&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=556%2C637&quot;\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-73595\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Bird-leader-lines-4a4aadd.jpg?quality=90&amp;resize=595%2C682&quot;\" width=\"&quot;595&quot;\" height=\"&quot;682&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<section class=\"&quot;highlight\"><div class=\"&quot;highlight__content\" editor-content=\"\"> <p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>A) Wing bones<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">The leading wing edge is made up of the radius, ulna and humerus limb bones. These create the frame for the primary (flight) feathers.<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/span><\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>B) Upstroke<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">The wings are kept slightly folded as they are pushed up to reduce air resistance.<\/span><\/p>\n<p><strong>C) Supracoracoideus muscles<\/strong><\/p>\n<p>These muscles push the wing up, and account for 10-15 percent of a bird\u2019s bodyweight<\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>D) Eyes<\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">Birds need excellent eyesight to navigate at speed while in the air.<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/span><\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>E) Pectorial muscles<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">These pull the wings down, and account for 15-25 per cent of a bird\u2019s bodyweight.<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/span><\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>F) Keel<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">The \u2018breastbone\u2019 provides an anchor for the flight muscles.<\/span><\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>G) Tail<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">The feathered tail makes a<span class=\"&quot;Apple-converted-space&quot;\"> great rudder<\/span><\/span><\/p>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>H) Primary feathers<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/b><\/span><\/p>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s1&quot;\">These are the flight feathers and create the curved \u2018aerofoil\u2019 shape that generates lift.<span class=\"&quot;Apple-converted-space&quot;\">\u00a0<\/span><\/span><\/p>\n<p> <\/p><\/div> <\/section><h2 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>Why birds\u2019 wing shapes vary?\u00a0<\/b><\/span><\/h2>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">So that they perfectly suit a species\u2019 lifestyle \u2013 here are the most common shapes:<\/span><\/p>\n<h3 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">Short and rounded<span class=\"&quot;Apple-converted-space&quot;\"> wings<\/span><\/span><\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=300%2C191&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=300%2C191&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?webp=true&amp;quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" type=\"&quot;image\/png&quot;\"><img class=\"&quot;wp-image-73596\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Short-and-round-bird-wings-0dc61f2.png?quality=90&amp;resize=342%2C218&quot;\" width=\"&quot;342&quot;\" height=\"&quot;218&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">These are ideal for manoeuvring in tight places, so they are perfect for woodland raptors like sparrowhawks, and most passerines, or perching birds.<\/span><\/p>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">Pointed<span class=\"&quot;Apple-converted-space&quot;\"> wings<\/span><\/span><\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=300%2C153&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=300%2C153&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=355%2C181&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=355%2C181&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=405%2C206&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=405%2C206&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=408%2C208&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=408%2C208&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?webp=true&amp;quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=448%2C228&quot;\" type=\"&quot;image\/png&quot;\"><img class=\"&quot;wp-image-73600\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.17.37-8a111f8.png?quality=90&amp;resize=448%2C228&quot;\" width=\"&quot;448&quot;\" height=\"&quot;228&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">When flapped hard, these streamlined wings enable their owners \u2013 such as falcons and ducks \u2013 to reach tremendous speeds. <\/span><\/p>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">Long and thin<span class=\"&quot;Apple-converted-space&quot;\"> wings<\/span><\/span><\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=300%2C130&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=300%2C130&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=355%2C153&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=355%2C153&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=405%2C175&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=405%2C175&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=408%2C176&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=408%2C176&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?webp=true&amp;quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=454%2C196&quot;\" type=\"&quot;image\/png&quot;\"><img class=\"&quot;wp-image-73604\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.22.30-1c6ca36.png?quality=90&amp;resize=454%2C196&quot;\" width=\"&quot;454&quot;\" height=\"&quot;196&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">These are ideal for birds like albatrosses, which take advantage of air currents generated above the surface of the ocean to glide effortlessly for long periods. <\/span><\/p>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">Large and broad<span class=\"&quot;Apple-converted-space&quot;\"> wings<\/span><\/span><\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=300%2C153&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=300%2C153&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=355%2C181&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=355%2C181&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=405%2C207&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=405%2C207&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=408%2C208&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=408%2C208&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?webp=true&amp;quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=458%2C234&quot;\" type=\"&quot;image\/png&quot;\"><img class=\"&quot;wp-image-73602\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.21.05-1963ceb.png?quality=90&amp;resize=458%2C234&quot;\" width=\"&quot;458&quot;\" height=\"&quot;234&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\">The large surface area allows bigger birds, such as buzzards, eagles and storks, to soar on thermals and save the energy of wing-flapping. The slots between the primary feathers minimise turbulence. <\/span><\/p>\n<h3\/>\n<h3\/>\n<h3\/>\n<h3\/>\n<h2 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>What are feathers made of?<\/b><\/span><\/h2>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s2&quot;\"><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/how-to\/identify-wildlife\/how-to-identify-common-feathers\/&quot;\">Feathers<\/a><\/strong> are made from keratin (the same as our fingernails) and come in two forms \u2013 large, stiff vane feathers for flight and soft down feathers for insulation. The colours are made by pigments or tiny structures that scatter or reflect light.<\/span><\/p>\n<h3 class=\"&quot;p1&quot;\"><span class=\"&quot;s1&quot;\"><b>Typical feather structure<\/b><\/span><\/h3>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;height:\" max-height:=\"\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=300%2C237&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=300%2C237&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=355%2C280&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=355%2C280&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=405%2C320&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=405%2C320&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=408%2C322&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=408%2C322&quot;\" type=\"&quot;image\/png&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?webp=true&amp;quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=456%2C360&quot;\" type=\"&quot;image\/png&quot;\"><img class=\"&quot;wp-image-73606\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/01\/Screenshot-2023-01-25-at-14.24.15-938f533.png?quality=90&amp;resize=456%2C360&quot;\" width=\"&quot;456&quot;\" height=\"&quot;360&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>\n<p class=\"&quot;p2&quot;\"><span class=\"&quot;s2&quot;\">Barbs (1)<\/span><span class=\"&quot;s1&quot;\"> branch from the main shaft or <\/span><span class=\"&quot;s2&quot;\">rachis (2)<\/span><span class=\"&quot;s1&quot;\">. Barbs are hooked together by <\/span><span class=\"&quot;s2&quot;\">Barbules (3)<\/span><span class=\"&quot;s1&quot;\">, strengthening the structure. A down feather has hookless barbules and is less rigid. <\/span><\/p>\n<p class=\"&quot;p2&quot;\"\/> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>By BBC Wildlife Magazine Published: Wednesday, 25 January 2023 at 12:00 am Flight gives birds a fairly big set of advantages over other animals. It enables them to forage over a wide area and to catch food on the wing. They can migrate between regions, to take full advantage of seasonal gluts and avoid the [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":24230,"template":"","categories":[1],"acf":{"readingTimeMinutes":"4"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-scaled.jpg",2560,1707,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-768x512.jpg",768,512,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-1024x683.jpg",800,534,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-1536x1024.jpg",1536,1024,true],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/how-do-birds-fly-2048x1365.jpg",2048,1365,true]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"By BBC Wildlife Magazine Published: Wednesday, 25 January 2023 at 12:00 am Flight gives birds a fairly big set of advantages over other animals. It enables them to forage over a wide area and to catch food on the wing. They can migrate between regions, to take full advantage of seasonal gluts and avoid the&hellip;","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/rss_feed\/24229"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/media\/24230"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/media?parent=24229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/categories?post=24229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}