{"id":24083,"date":"2023-01-10T14:30:47","date_gmt":"2023-01-10T13:30:47","guid":{"rendered":"https:\/\/www.discoverwildlife.com\/?p=72979"},"modified":"2023-01-10T15:35:41","modified_gmt":"2023-01-10T14:35:41","slug":"red-squirrel-vs-grey-squirrel-the-key-differences","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/rss_feed\/red-squirrel-vs-grey-squirrel-the-key-differences\/","title":{"rendered":"Red squirrel vs grey squirrel: the key differences"},"content":{"rendered":"<p class=\"rssexcerpt\"><\/p><p class=\"rssauthor\">By Red Squirrel Survival Trust\n                \t\t<\/p><p class=\"rssbyline\">Published: Tuesday, 10 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><span class=\"&quot;s4&quot;\">Despite being two different species of squirrel the grey and red squirrel do share some similarities, says Mark Henderson from the <strong><a href=\"&quot;https:\/\/www.rsst.org.uk\/&quot;\">Red Squirrel Survival Trust. <\/a><\/strong><\/span><\/p>\n<p><span class=\"&quot;s5&quot;\">Both squirrels are arboreal (tree dwelling) and diurnal<\/span> <span class=\"&quot;s5&quot;\">(out and about in the day)<\/span><span class=\"&quot;s5&quot;\">. <\/span><span class=\"&quot;s5&quot;\">Their<\/span> <span class=\"&quot;s5&quot;\">p<\/span><span class=\"&quot;s5&quot;\">rimary f<\/span><span class=\"&quot;s5&quot;\">ood source is generally the nuts and seeds of trees, but is supplemented by fungi, fruits, <\/span><span class=\"&quot;s5&quot;\">leaves, buds, <\/span><span class=\"&quot;s5&quot;\">nectar and sometimes songbird eggs and nestlings. <\/span><\/p>\n<p><span class=\"&quot;s5&quot;\">Their tails are roughly equal in length to their entire body<\/span><span class=\"&quot;s5&quot;\">.<\/span><\/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\/mammals\/10-nutty-facts-about-squirrels\/&quot;\">10 nutty facts about squirrels<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/mammals\/how-do-squirrels-find-their-nuts\/&quot;\">How do squirrels find their nuts?<\/a><\/strong><\/li>\n<\/ul><p> <\/p><\/div> <\/section><p><span class=\"&quot;s5&quot;\">There are two mating seasons during the year, assuming they are well fed and healthy and produce a similar <\/span><span class=\"&quot;s5&quot;\">litter size of 3 to 6 kits. Their nests are called <\/span><span class=\"&quot;s5&quot;\">dreys<\/span><span class=\"&quot;s5&quot;\"> and are an untidy \u201cfootball-sized\u201d ball of twigs but are difficult to spot from the ground. Unlike <a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/birds\/bird-nests-guide\/&quot;\">birds\u2019 nests<\/a>, they are built very close to the trunk or in strong forks and most <\/span><span class=\"&quot;s5&quot;\">squirrels <\/span><span class=\"&quot;s5&quot;\">will have two or three <\/span><span class=\"&quot;s5&quot;\">dreys<\/span><span class=\"&quot;s5&quot;\"> and move between them.\u00a0<\/span><\/p>\n<p>However, there are considerable differences\u2026<\/p>\n<h2><span class=\"&quot;s4&quot;\">What\u2019s the difference between a red squirrel and a grey squirrel?\u00a0<\/span><\/h2>\n<p>\u00a0<\/p>\n<h3 class=\"&quot;s7&quot;\"><span class=\"&quot;s6&quot;\">Red squirrel vs grey squirrel: <\/span><span class=\"&quot;s5&quot;\">appearance<\/span><\/h3>\n<p><span class=\"&quot;s5&quot;\"><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/mammals\/understand-grey-squirrels\/&quot;\">Grey squirrels<\/a><\/strong> are larger and heavier than<strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/mammals\/facts-about-red-squirrels\/&quot;\"> red squirrels<\/a><\/strong>. Greys average 48cm <\/span><span class=\"&quot;s5&quot;\">(<\/span><span class=\"&quot;s5&quot;\">including tail<\/span><span class=\"&quot;s5&quot;\">) in length which is 26 per cent\/10cm more than the average for reds. In weight however, the greys average 575g compared to the red average of 305g, a difference of almost 90 per cent in favour of the more stocky\/muscular grey. <\/span><\/p>\n<p><span class=\"&quot;s5&quot;\">Telling the difference based on colour <\/span>only can be difficult as greys can have a red\/brown tinge to their fur, and reds, particularly those that originate from Northern Europe\/Scandinavia can grow a noticeable grey winter coat.<\/p>\n<p><span class=\"&quot;s5&quot;\">Almost all reds will grow the characteristic ear tufts but only during winter. <\/span><span class=\"&quot;s5&quot;\">The safest way to tell them apart is to look at the tail. The grey squirrel tail fur is white coloured at the end. This gives a sort of halo\/shimmer look, whereas the red squirrel tail fur is all the same <\/span><span class=\"&quot;s5&quot;\">colour<\/span><span class=\"&quot;s5&quot;\">.<\/span><\/p>\n<iframe title=\"&quot;Red\" squirrel=\"\" our=\"\" woods=\"\" wildlife=\"\" woodland=\"\" trust=\"\" width=\"&quot;200&quot;\" height=\"&quot;113&quot;\" src=\"&quot;https:\/\/www.youtube.com\/embed\/zP8o5Bc1Fpk?feature=oembed&quot;\" frameborder=\"&quot;0&quot;\" allow=\"&quot;accelerometer;\" autoplay=\"\" clipboard-write=\"\" encrypted-media=\"\" gyroscope=\"\" picture-in-picture=\"\" web-share=\"\" allowfullscreen=\"\"\/>\n<div class=\"&quot;s7&quot;\">\n<h3 class=\"&quot;s7&quot;\"><span class=\"&quot;s6&quot;\">Red squirrel vs grey squirrel: diet<\/span><\/h3>\n<\/div>\n<p><span class=\"&quot;s5&quot;\">The grey, whilst eating the same as the red, has a competitive advantage in that it can eat seeds and nuts before they have fully ripened<\/span><span class=\"&quot;s5&quot;\">. Its digestive system can cope with the tannins whereas the red squirrel\u2019s cannot. This means that the greys can access and deplete the food source earlier.<\/span><\/p>\n<p>Of great concern is the tendency of both squirrels to strip bark from particular juvenile trees (oak, beech, hornbeam, wild cherry etc.) to get at the sap.<\/p>\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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=300%2C200,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=300%2C200,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=355%2C237,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=355%2C237,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=405%2C270,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=405%2C270,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=554%2C369,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=554%2C369,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=620%2C413,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=620%2C413,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=408%2C272,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=408%2C272,\" 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\/suirrel-bark-stripping-6093895.jpeg?webp=true&amp;quality=90&amp;resize=556%2C371,\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-73081\" 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\/suirrel-bark-stripping-6093895.jpeg?quality=90&amp;resize=620%2C413&quot;\" width=\"&quot;2976&quot;\" height=\"&quot;1984&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> \u00a9 RSST<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<div class=\"&quot;s7&quot;\">\n<h3 class=\"&quot;s7&quot;\"><span class=\"&quot;s6&quot;\">Red squirrel vs grey squirrel: <\/span>habitat and population densities<\/h3>\n<\/div>\n<p><span class=\"&quot;s5&quot;\">It is a myth that red squirrels prefer pine forests and greys prefer mixed broadleaf woodland. Both prefer mixed broadleaf and the nut and seed supply from that type of woodland\/forest. Reds have been forced out into pine forests as the greys <\/span><span class=\"&quot;s5&quot;\">dominate the food supply<\/span><span class=\"&quot;s5&quot;\">.<\/span><span class=\"&quot;s5&quot;\"> One hectare of perfect woodland can support one red squirrel <\/span><span class=\"&quot;s5&quot;\">whereas it can support <\/span><span class=\"&quot;s5&quot;\">anything from three to thirty grey squirrels.<\/span><\/p>\n<p>\u00a0<\/p>\n<h3 class=\"&quot;s7&quot;\"><span class=\"&quot;s5&quot;\">Native and non-native invasive species<\/span><\/h3>\n<p><span class=\"&quot;s5&quot;\">The red squirrel is native to the UK and has existed frm the ice age. The grey was imported to the UK and Ireland from the late 1870s to the early 1900s. <\/span><\/p>\n<p><span class=\"&quot;s5&quot;\">Greys were released accidentally and deliberately and have spread to all but islands (Isle of <\/span><span class=\"&quot;s5&quot;\">W<\/span><span class=\"&quot;s5&quot;\">ight and <\/span><span class=\"&quot;s5&quot;\">Brownsea<\/span><span class=\"&quot;s5&quot;\">) and the highlands of Scotland. Estimates for numbers <\/span><span class=\"&quot;s5&quot;\">vary but for reds, it is 120k\u2013160k across the UK with fewer than 15k in England and approximately 100k in Scotland. Across Cambridgeshire, Hertfordshire and Bedfordshire, there are some 20k black squirrels. These are in fact a melanistic version of the grey and were also imported from the USA.<\/span><span class=\"&quot;s5&quot;\"> Research suggests that this squirrel originated from <\/span><span class=\"&quot;s5&quot;\">a cross between the American grey and the f<\/span><span class=\"&quot;s5&quot;\">ox squirrel in the USA.<\/span><\/p>\n<p>\u00a0<\/p>\n<div class=\"&quot;s7&quot;\">\n<h3 class=\"&quot;s7&quot;\"><span class=\"&quot;s6&quot;\">Red squirrel vs grey squirrel: t<\/span>hreats<\/h3>\n<\/div>\n<p><span class=\"&quot;s5&quot;\">The main threats to all squirrels are <\/span><span class=\"&quot;s5&quot;\">cars, predation from domestic pets and habitat loss. For red squirrels the added threats come from grey squirrels. They simply cannot compete for food with the larger, heavier, hungrier competition and through this alone, would normally either retreat to less favourable woodland forest or simply die out within a few generations. Sadly<\/span><span class=\"&quot;s5&quot;\">,<\/span><span class=\"&quot;s5&quot;\"> the grey also has \u201can accelerator\u201d in the form of the p<\/span><span class=\"&quot;s5&quot;\">arapox<\/span><span class=\"&quot;s5&quot;\"> virus. Greys carry this virus with no threat to themselves but if transmitted into a red population, it can decimate the red squirrel numbers within weeks. For these reasons, co-existing is simply not possible<\/span><span class=\"&quot;s5&quot;\"> and<\/span> <span class=\"&quot;s5&quot;\">a<\/span><span class=\"&quot;s5&quot;\">s they are different species, they will not cross breed. <\/span><\/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\/reptiles\/turtle-vs-tortoise\/&quot;\">Turtle vs tortoise: what\u2019s the difference?<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/animal-facts\/marine-animals\/skate-vs-ray-whats-the-difference\/&quot;\">Skate vs ray: what\u2019s the difference?<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/how-to\/identify-wildlife\/how-to-tell-the-difference-between-a-frog-and-a-toad\/&quot;\">How to tell the difference between a common frog and a common toad<\/a><\/strong><\/li>\n<li><strong><a href=\"&quot;https:\/\/www.discoverwildlife.com\/how-to\/identify-wildlife\/how-to-tell-the-difference-between-an-otter-and-a-mink\/&quot;\">Mink or otter? How to tell the difference<\/a><\/strong><\/li>\n<\/ul><p> <\/p><\/div> <\/section> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>By Red Squirrel Survival Trust Published: Tuesday, 10 January 2023 at 12:00 am Despite being two different species of squirrel the grey and red squirrel do share some similarities, says Mark Henderson from the Red Squirrel Survival Trust. Both squirrels are arboreal (tree dwelling) and diurnal (out and about in the day). Their primary food [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":24084,"template":"","categories":[1],"acf":{"readingTimeMinutes":"4"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences.jpg",600,400,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences.jpg",600,400,false],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences.jpg",600,400,false],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences.jpg",600,400,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2023\/01\/red-squirrel-vs-grey-squirrel-the-key-differences.jpg",600,400,false]},"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 Red Squirrel Survival Trust Published: Tuesday, 10 January 2023 at 12:00 am Despite being two different species of squirrel the grey and red squirrel do share some similarities, says Mark Henderson from the Red Squirrel Survival Trust. Both squirrels are arboreal (tree dwelling) and diurnal (out and about in the day). Their primary food&hellip;","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/rss_feed\/24083"}],"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\/24084"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/media?parent=24083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcwildlife\/wp-json\/wp\/v2\/categories?post=24083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}