by William Swainson, Zoological Illustrations — Vol II. Pl… (1820)
“ The female has the head blackish, the feathers tipt with dull white; the ears darker; the plumage above more olive, the spots brighter, and the bands on the body grey, paler, and more indistinct than in the male. The feet in both sexes are greenish, and the wings three inches and a half long. ”
