Mountain Chickadee <i><a href="//commons.wikimedia.org/wiki/Poecile_gambeli" title="Poecile gambeli">Poecile gambeli</a></i> on <i><a href="//commons.wikimedia.org/wiki/Pinus_edulis" title="Pinus edulis">Pinus edulis</a></i> at Mather Point, Grand Canyon, Arizona, USA
<a href="//commons.wikimedia.org/wiki/User:Hermann_Luyken" title="User:Hermann Luyken">Hermann Luyken</a>
2012-09-14 09:29:08
<span class="int-own-work" lang="en">Own work</span>