Iago Sparrow, <i><a href="//commons.wikimedia.org/wiki/Passer_iagoensis" title="Passer iagoensis">Passer iagoensis</a></i>. <a href="//commons.wikimedia.org/wiki/File:Passer_iagoensis.jpg" title="File:Passer iagoensis.jpg">File:Passer iagoensis.jpg</a> cropped.
Signed by <a href="//commons.wikimedia.org/wiki/John_Gould" title="John Gould">John Gould</a>, probably by Elisabeth Gould
1839
<a rel="nofollow" class="external text" href="http://darwin-online.org.uk/content/frameset?itemID=F8.11&amp;viewtype=text&amp;pageseq=1">Darwin, C. R. ed. 1839. Birds Part 3 No. 4 of The zoology of the voyage of H.M.S. Beagle. by John Gould. Edited and superintended by Charles Darwin. London: Smith Elder and Co.</a>