by William Swainson, Zoological Illustrations Series II… (1829)
“ Having figured the male on our 82nd plate, we now exhibit, in the female, that remarkable difference between the sexes, which pervades all the species. Our figure and specific character renders a detailed description of the plumage unnecessary; it should be observed, however, that the lateral tail feathers, in the female, are without those two black transverse bands on the inner web, towards the tip, which are so conspicuous in the male. ”
