Redhead (bird) "Nassarius acutus", "Nassarius vibex", "Natica" sp., "Neritina virginea", "Odostomia trifida", "Olivella minuta", "Olivella watermani", "Polinices" sp., Pyramidellidae, "Pyrgocythara plicosa", "Rissoina catesbyana", "Sayella livida", "Turbonilla" sp., "Turbonilla interrupta" and "Vitrinella" sp. Redhead (bird) The redhead ("Aythya americana") is a medium-sized diving duck. The scientific name is derived from Greek "aithuia" an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin "americana", of America. The redhead is long with an wingspan. It belongs to the genus Aythya, together with 11 other described species. The redhead and the common pochard form a sister group which together is sister to the canvasback.
What Bird is That? Edition What Bird is That?" was published by Australia's Heritage Publishing in 2011, the latest release of Cayley’s “big bird book” complete with Lindsey’s revisions. It is 832 pages, features 769 birds and includes all 460 of Cayley’s full-colour paintings, many showing groups of related birds. New to this edition was an accompanying e-book "What Bird Call is That?", which identifies and illustrates 101 birds from "What Bird is That?", as well as providing sound files of each featured bird’s distinctive call. The sound files were provided by David Stewart. "What Bird is That?" plays a central role in Australian