1.0phone english bloghttps://phoneenglish.es/blogmeganhttps://phoneenglish.es/blog/author/megan/rich600338<blockquote class="wp-embedded-content" data-secret="tDcjbwuQg0"><a href="https://phoneenglish.es/blog/2020/05/cuckoo-completes-epic-migration/">Cuckoo Completes Epic Migration</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://phoneenglish.es/blog/2020/05/cuckoo-completes-epic-migration/embed/#?secret=tDcjbwuQg0" width="600" height="338" title="“Cuckoo Completes Epic Migration” — phone english blog" data-secret="tDcjbwuQg0" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); </script> B1 – Intermediate Cuckoo birds are birds that are popular for their parenting skills. They have a habit of laying their eggs in the nests of other species and letting other birds raise their babies for them. Several weeks later, young cuckoos are ready to migrate and fly to Africa and find their real parents. […]