Pacific Black Duck <i><a href="//commons.wikimedia.org/wiki/Anas_superciliosa" title="Anas superciliosa">Anas superciliosa</a></i> (left) and a pair of Chestnut Teal <i><a href="//commons.wikimedia.org/wiki/Anas_castanea" title="Anas castanea">Anas castanea</a></i>, Mont Albert North, Melbourne, Victoria, Australia.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/79382895@N08">PsJeremy</a> from Melbourne, Australia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/psjeremy/7994118673/">Chestnut Teal pair looks much smaller than the pacific black duck on the left</a>