{"version":"1.0","provider_name":"Swiss Ornithological Institute","provider_url":"https:\/\/www.vogelwarte.ch\/en\/","title":"Vogelarten: European Herring Gull","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"r89xak6C7d\"><a href=\"https:\/\/www.vogelwarte.ch\/en\/birds-of-switzerland\/european-herring-gull\/\">European Herring Gull<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.vogelwarte.ch\/en\/birds-of-switzerland\/european-herring-gull\/embed\/#?secret=r89xak6C7d\" width=\"600\" height=\"338\" title=\"&#8220;European Herring Gull&#8221; &#8212; Swiss Ornithological Institute\" data-secret=\"r89xak6C7d\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.vogelwarte.ch\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.vogelwarte.ch\/wp-content\/uploads\/2026\/03\/2561_1.jpg","thumbnail_width":1600,"thumbnail_height":1200,"description":"In the north of Europe, the vociferous European Herring Gulls are ever-present on the coasts and in harbours. They are remarkably adaptable birds and have therefore exploited a large number of food sources. The European Herring Gull breeds in large colonies, is faithful to its breeding site and can live up to 30 years. The partners recognise each other by their call, even among the screaming of a colony of 10,000 breeding pairs. Only few European Herring Gulls reach our lakes and rivers during winter."}