Crimson-hooded Manakin (Pipra aureola) Science Article 1
abstract
Snow (Zoologica, 47: 195, 1962) states that female Golden-headed Manakins (Pipra erythrocephala) on Trinidad, West Indies, regularly have a few feathers characteristic of the male in the plumage of the head and body, and that, in birds trapped more than once,the number and distribution of these feathers remained much the same from year to year. Immature males may also have a few adult male feathers on the head and body; thus, immature males cannot be separated from adult females on the basis of plumage.
F. HAVERSCHIMDT, The AUK (82): 502