{"id":2529,"date":"2007-07-30T16:10:00","date_gmt":"2007-07-30T16:10:00","guid":{"rendered":"https:\/\/whalewatchingazores.com\/blog\/2007\/07\/30\/great-black-backed-gull-fact-sheet\/"},"modified":"2020-02-12T10:31:49","modified_gmt":"2020-02-12T11:31:49","slug":"great-black-backed-gull-fact-shee","status":"publish","type":"post","link":"https:\/\/whalewatchingazores.com\/blog\/great-black-backed-gull-fact-shee\/","title":{"rendered":"Great black-backed gull fact sheet"},"content":{"rendered":"\n<h2 id=\"larus-marinus-great-black-backed-gull\"><em>Larus<\/em> <em>marinus <\/em>|\u00a0Great black-backed gull\u00a0<\/h2>\n\n\n\n<p>The great\u00a0black-backed gulls is the largest gull in the world. The adults are\u00a0identified\u00a0 by their dark cover, massive\u00a0yellow beaks and pink feet. The larger juveniles are more difficult to\u00a0distinguish from other gulls as their colouration is more mottled and can easily be confused with other\u00a0species. Black-backed gulls feed on other birds, eggs, fish, dead animals and\u00a0leftover garbage. Nesting occurs between April and July in Russia and northern\u00a0regions of the Atlantic. They often build their nests on dry seaweed in rocky\u00a0areas with protection from the wind. They breed singly or in colonies with both\u00a0parents taking part in incubation. In the Azores black-backed gulls are\u00a0frequently seen in small flocks, mainly during the winter months. They are\u00a0sighted throughout all the islands and are especially common in ports and\u00a0marinas.\u00a0This species is classified as an &#8220;uncommon vagrant&#8221; in the Azores.<\/p>\n\n\n\n<p><strong>Length:<\/strong> 71 &#8211; 79 cm<\/p>\n\n\n\n<p><strong>Weight: <\/strong>1,400 &#8211; 2,300 g<\/p>\n\n\n\n<p><strong>Wingspan:<\/strong> 150 &#8211; 170 cm<\/p>\n\n\n\n<p><strong>Longevity:<\/strong> 27 years<\/p>\n\n\n\n<p><strong>Diet:<\/strong> Birds, fish, dead animals and rubbish remains<\/p>\n\n\n\n<p><strong>Breeding age:<\/strong> c.6 years<\/p>\n\n\n\n<p><strong>Eggs:<\/strong> 1 &#8211; 3<\/p>\n\n\n\n<p><strong>Incubation:<\/strong> 28 days<\/p>\n\n\n\n<p><strong>Nesting sites:<\/strong> On the ground on all types of substrate<\/p>\n\n\n\n<p><strong>Fledging:<\/strong> 50 days<\/p>\n\n\n\n<p><strong>In other languages<\/strong><br>Portuguese: Gaivot\u00e3o real<br>Spanish: Gavi\u00f3n atl\u00e1ntico<br>French: Go\u00e9land marin<br>Italian: Mugnaiaccio<br>German: Mantelm\u00f6we<br>Dutch: Grote mantelmeeuw<br>Swedish: Havstrut<br>Norwegian: Svartbak<br>Danish: Svartbag<br>Finnish: Merilokki<\/p>\n","protected":false},"excerpt":{"rendered":"Larus marinus |\u00a0Great black-backed gull\u00a0 The great\u00a0black-backed gulls is the largest gull in the world. The adults are\u00a0identified\u00a0&hellip;\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[313],"tags":[277,79],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Great black-backed gull fact sheet - Azores Whales<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/whalewatchingazores.com\/blog\/great-black-backed-gull-fact-shee\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Great black-backed gull fact sheet - Azores Whales\" \/>\n<meta property=\"og:description\" content=\"Larus marinus |\u00a0Great black-backed gull\u00a0 The great\u00a0black-backed gulls is the largest gull in the world. 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