1.0Naturehttps://www.pbs.org/wnet/natureAmanda Schmidthttps://www.pbs.org/wnet/nature/author/schmidta/WILDHEART ~ Capercaillies Battle for the Right to Mate | Nature | PBSrich600338<blockquote class="wp-embedded-content" data-secret="hwMMvb6qL7"><a href="https://www.pbs.org/wnet/nature/capercaillies-battle-right-mate/28257/"> Capercaillies Battle for the Right to Mate</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.pbs.org/wnet/nature/capercaillies-battle-right-mate/28257/embed/#?secret=hwMMvb6qL7" width="600" height="338" title="“ Capercaillies Battle for the Right to Mate” — Nature" data-secret="hwMMvb6qL7" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! 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);
//# sourceURL=https://www.pbs.org/wnet/nature/wp-includes/js/wp-embed.min.js
/* ]]> */
</script>
https://www.pbs.org/wnet/nature/files/2022/12/V6r5LAe-asset-mezzanine-16x9-gkV1Ky5.jpg19201080Capercaillies, birds that live and breed amongst the Scots pines, have an intimate relationship with the tree. The males must compete for the right to mate exclusively with all the hen capercaillies.