Читать книгу A Manual of Philippine Birds - Richard C. McGregor - Страница 15

 a1. Hind toe on a level with the other toes; feet and claws very heavy; colors plain, the sexes similar in color Megapodii (p. 9)

 a2. Hind toe slightly elevated; feet and claws moderate in size; sexes very different in color; males much brighter Phasiani (p. 11)