A flock of over 50 Snow Buntings on Dornock beach, Scotland.  They were flitting over the dunes and occasionally coming to rest and feeding on the tall stalks of maram grass.  In autumn and winter birds develop a sandy/buff wash to their plumage and males have more mottled upperparts.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/43145783@N00">John Haslam</a>
CC BY 2.0
originally posted to <b><a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a></b> as <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/43145783@N00/3266512514">Birds of a feather flock together; Sand dunes, Dornoch beach</a>