Cape sugarbird (<i><a href="//commons.wikimedia.org/wiki/Promerops_cafer" title="Promerops cafer">Promerops cafer</a></i>)
Mhairi L. McFarlane
CC BY 2.5
Chown SL, Sinclair BJ, Leinaas HP, Gaston KJ: <i>Hemispheric Asymmetries in Biodiversity—A Serious Matter for Ecology.</i> PLoS Biol 2/11/2004: e406. <a href="//doi.org/10.1371/journal.pbio.0020406" class="extiw" title="doi:10.1371/journal.pbio.0020406">doi:10.1371/journal.pbio.0020406</a>