{"id":1193,"date":"2012-08-20T18:36:59","date_gmt":"2012-08-20T18:36:59","guid":{"rendered":"http:\/\/blog.cwf-fcf.org\/?p=1193"},"modified":"2016-10-14T14:23:38","modified_gmt":"2016-10-14T14:23:38","slug":"what-an-eggshell-can-tell-you","status":"publish","type":"post","link":"https:\/\/blog.cwf-fcf.org\/index.php\/en\/what-an-eggshell-can-tell-you\/","title":{"rendered":"What An Eggshell Can Tell You"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Herring Gull eggs\" src=\"http:\/\/cwf-fcf.org\/assets\/images\/conservation\/blog\/eggs_1.jpg\" \/><\/p>\n<p><a href=\"http:\/\/www.ec.gc.ca\/envirozine\/default.asp?lang=En&amp;n=66DE816A-1\" target=\"_blank\">Image Credit<\/a><\/p>\n<p>University of Guelph researchers studied nearly 700 herring gull eggs from the Great Lakes region and have found that based on egg colour they can determine environmental contamination levels.<\/p>\n<p>Using a spectrophotometer to measure slight colour variation, researchers found that when contamination levels are higher the egg is not as blue-green as it would be in less contaminated areas.<\/p>\n<p>Because all birds share the same two colour pigments in their eggs \u2013 brown and blue-green, it is possible that this <a href=\"http:\/\/www.thestar.com\/printarticle\/1241286\">study<\/a>\u00a0could be applied to other populations and used around the world.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"post-excerpt\">Image Credit University of Guelph researchers studied nearly 700 herring gull eggs from the Great Lakes region and have found that based on egg colour they can determine environmental contamination&hellip;<\/div>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[633],"tags":[257,591],"class_list":["post-1193","post","type-post","status-publish","format-standard","hentry","category-canadian-wildlife","tag-birds","tag-wild-about-birds"],"_links":{"self":[{"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/posts\/1193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/comments?post=1193"}],"version-history":[{"count":1,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/posts\/1193\/revisions"}],"predecessor-version":[{"id":1194,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/posts\/1193\/revisions\/1194"}],"wp:attachment":[{"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/media?parent=1193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/categories?post=1193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cwf-fcf.org\/index.php\/wp-json\/wp\/v2\/tags?post=1193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}