{"id":2537,"date":"2007-07-30T16:02:00","date_gmt":"2007-07-30T16:02:00","guid":{"rendered":"https:\/\/whalewatchingazores.com\/blog\/2007\/07\/30\/black-headed-gull-fact-sheet\/"},"modified":"2020-02-12T10:15:39","modified_gmt":"2020-02-12T11:15:39","slug":"black-headed-gull-fact-shee","status":"publish","type":"post","link":"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/","title":{"rendered":"Black-headed gull fact sheet"},"content":{"rendered":"\n

Larusridibundus <\/em>|\u00a0Black-headed gull\u00a0<\/h2>\n\n\n\n

The black-headed gull is a small sized seagull that is is relatively abundant in Portugal.\u00a0 The underparts are white, the upperparts are silver and the wingtips are black. During the summer season the head of the males is dark brown whereas during the winter they have only a small spot behind the eyes. The juvenile differs from the adults in their colouration, being almost completely brown with white underparts. They form flocks of\u00a0\u00a0hundreds\u00a0or even thousands and often mix with other seagull species. In Portugal\u00a0 (including the Azores) the black-headed gull is frequently sighted in the winter (with their winter plumage). Nesting occurs between July and March. At this time individuals extend further north throughout North America and Asia. The nests are constructed out of plant material from the ground and\u00a0\u00a0can be located in cliffs as well as buildings.\u00a0This species is classified as “uncommon breeding” in the Azores.<\/p>\n\n\n\n

Length: <\/strong>35 \u2013 39 cm<\/p>\n\n\n\n

Weight: <\/strong>200 \u2013 400 g<\/p>\n\n\n\n

Wingspan: <\/strong>86 \u2013 99 cm<\/p>\n\n\n\n

Population:\u00a0<\/strong>7,300,000\u00a0\u2013 11,000,000<\/p>\n\n\n\n

Longevity: <\/strong>32 years<\/p>\n\n\n\n

Diet:\u00a0<\/strong>Worms,\u00a0invertebrates, food scraps, garbage, fish<\/p>\n\n\n\n

Eggs: <\/strong>2 – 3<\/p>\n\n\n\n

Incubation:\u00a0<\/strong>23 \u2013\u00a026 days<\/p>\n\n\n\n

Nesting sites:\u00a0<\/strong>On\u00a0the soil, buildings, cliffs<\/p>\n\n\n\n

Fledging: <\/strong>c.35 days<\/p>\n\n\n\n

In other languages<\/strong>
Portuguese: Guincho-comum
Spanish: Gaviota reidora
French:\u00a0Mouette rieuse
Italian:\u00a0gabbiano comune
German:\u00a0Lachm\u00f6we
Dutch:\u00a0Kokmeeuw
Swedish:\u00a0Skrattm\u00e5s
Norwegian:\u00a0Hettem\u00e5ke
Danish:\u00a0H\u00e6ttem\u00e5gen
Finnish:\u00a0Naurulokki<\/p>\n\n\n

\n
\u00a0<\/div>\n
\n
\n
\"\"<\/a>
Summer plumage (photo taken in Sweden)<\/figcaption><\/figure>\n<\/div>\n
\u00a0<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Larusridibundus |\u00a0Black-headed gull\u00a0 The black-headed gull is a small sized seagull that is is relatively abundant in Portugal.\u00a0…\n","protected":false},"author":2,"featured_media":2949,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[313],"tags":[277,79],"yoast_head":"\nBlack-headed 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\/black-headed-gull-fact-shee\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Black-headed gull fact sheet - Azores Whales\" \/>\n<meta property=\"og:description\" content=\"Larusridibundus |\u00a0Black-headed gull\u00a0 The black-headed gull is a small sized seagull that is is relatively abundant in Portugal.\u00a0…\" \/>\n<meta property=\"og:url\" content=\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/\" \/>\n<meta property=\"og:site_name\" content=\"Azores Whales\" \/>\n<meta property=\"article:published_time\" content=\"2007-07-30T16:02:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-02-12T11:15:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/whalewatchingazores.com\/blog\/wp-content\/uploads\/2007\/07\/IMG_5751.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"683\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data1\" content=\"1 minute\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/#website\",\"url\":\"https:\/\/whalewatchingazores.com\/blog\/\",\"name\":\"Azores Whales\",\"description\":\"Azores Whale Watching Blog\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/whalewatchingazores.com\/blog\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#primaryimage\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/whalewatchingazores.com\/blog\/wp-content\/uploads\/2007\/07\/IMG_5751.jpg\",\"contentUrl\":\"https:\/\/whalewatchingazores.com\/blog\/wp-content\/uploads\/2007\/07\/IMG_5751.jpg\",\"width\":1024,\"height\":683},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#webpage\",\"url\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/\",\"name\":\"Black-headed gull fact sheet - Azores Whales\",\"isPartOf\":{\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#primaryimage\"},\"datePublished\":\"2007-07-30T16:02:00+00:00\",\"dateModified\":\"2020-02-12T11:15:39+00:00\",\"author\":{\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/#\/schema\/person\/ccbb558acf5445295d665fb153636c78\"},\"breadcrumb\":{\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/\",\"url\":\"https:\/\/whalewatchingazores.com\/blog\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/black-headed-gull-fact-shee\/#webpage\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/#\/schema\/person\/ccbb558acf5445295d665fb153636c78\",\"name\":\"Futurismo Biologists Team\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/whalewatchingazores.com\/blog\/#personlogo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/bc557f0ad5ebe29d770478dfcbf8f29d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/bc557f0ad5ebe29d770478dfcbf8f29d?s=96&d=mm&r=g\",\"caption\":\"Futurismo Biologists Team\"},\"description\":\"At Futurismo, we are not just a sea team. 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