<p>Violet-green swallow  is perched on a tree limb.</p>
<p>Violet-green swallow</p>
<ul><li>Keywords: yellowstone national park; wildlife; birds; passiferomes; ynp; yellowstone; yellowstone forever; spring; violet-green swallow; Tachycineta thalassina; 20180608-jwf-1263</li></ul>
Jacob W. Frank
<a rel="nofollow" class="external text" href="https://npgallery.nps.gov/">NPGallery</a>