Spread of Cattle Egret <i>Bubulcus ibis</i> in the New World.
<a href="//commons.wikimedia.org/wiki/User:Shyamal" title="User:Shyamal">L. Shyamal</a>
2008-04
<p>Own work based on:
</p>
<ul><li>Davis, Owen. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060517184259/http://www.geo.arizona.edu/Antevs/ecol438/catlegrt.gif">Dispersal and Range Expansion: Cattle Egret</a>. <i>BIOGEOGRAPHY ECOL 438/538 SPRING 05 - Lecture 8 - Department of Geosciences at the University of Arizona</i>. Archived from <a rel="nofollow" class="external text" href="http://www.geo.arizona.edu/Antevs/ecol438/catlegrt.gif">the original</a> on <span class="mw-formatted-date" title="2006-05-17">2006-05-17</span>.</li>
<li>Smith, 1974</li></ul>