A breeding male <a href="https://en.wikipedia.org/wiki/Kentish_Plover" class="extiw" title="w:Kentish Plover">Kentish Plover</a> of the nominate subspecies <i>Charadrius alexandrinus alexandrinus</i> (left) and White-faced Plover (<i>C. (a.) dealbatus</i>; right) at Tanjung Tokong, Penang, Malaysia. Note the differences in facial coloration and tone of back plumage.
D. N. Bakewell
CC BY 2.5
<a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371%2Fjournal.pone.0026995.g001">10.1371/journal.pone.0026995.g001</a>