{"version":"1.0","provider_name":"WildLight Photography","provider_url":"https:\/\/www.tonywhitehead.com\/wildlight","author_name":"tony","author_url":"https:\/\/www.tonywhitehead.com\/wildlight\/archives\/author\/whyted","title":"How reliable is speculum colour for duck identification? - WildLight Photography","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"HBU6dsmlAN\"><a href=\"https:\/\/www.tonywhitehead.com\/wildlight\/archives\/8786\">How reliable is speculum colour for duck identification?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.tonywhitehead.com\/wildlight\/archives\/8786\/embed#?secret=HBU6dsmlAN\" width=\"600\" height=\"338\" title=\"&#8220;How reliable is speculum colour for duck identification?&#8221; &#8212; WildLight Photography\" data-secret=\"HBU6dsmlAN\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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.tonywhitehead.com\/wildlight\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.tonywhitehead.com\/wildlight\/wp-content\/uploads\/2018\/01\/BlackDuck_DSC0046-web.jpg","thumbnail_width":800,"thumbnail_height":533,"description":"Processing images for my recent post on Grey Duck raised the question. How reliable is speculum colour for duck identification? The speculum is the bright iridescent coloured area on the secondary flight feathers of some ducks. In Mallards it is blue and in our native New Zealand Grey Duck (Pacific Black Duck &#8211;&nbsp;Anas superciliosa) it [&hellip;]"}