Brown boobies stake out positions atop the posts of an old pier at Johnston Atoll National Wildlife Refuge in the Pacific. (Lindsey Hayes/USFWS)
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<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/50838842@N06/5123394629">Brown boobies atop pier posts at Johnston Atoll NWR</a>