A Brown-headed Cowbird (<i><a href="//commons.wikimedia.org/wiki/Molothrus_ater" title="Molothrus ater">Molothrus ater</a></i>) egg in an Eastern Phoebe (<i><a href="//commons.wikimedia.org/wiki/Sayornis_phoebe" title="Sayornis phoebe">Sayornis phoebe</a></i>) nest.
Frankie Rose
2006-05-05
<span class="int-own-work" lang="en">Own work</span>