(Elliott and Kirwan 2017, except as noted)
(Seymour 1991; Göth 2002, except as noted)
An 1887 illustration of a male Australian Brush-turkey scratching leaf litter behind him, while building an incubation mound.
Image credit: G. Mirtzel. In: "The Brush Turkey." Scientific American 57(11): p. 162. No known copyright restrictions.