The Harris's Hawk (Parabuteo unicinctus) is famous for its remarkable behavior of hunting cooperatively in packs, consisting of family groups. Most raptors are solitary hunters
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/32541690@N02">Alan Vernon</a>
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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/32541690@N02/5535227223">Harris's Hawk (Parabuteo unicinctus).......3 of 4 in set</a>