Читать книгу A Manual of Philippine Birds - Richard C. McGregor - Страница 88

 a1. Chin, throat, and upper part of chest gray or black.b1. Band on fore breast light slate-gray. carola (p. 46)b2. Band on fore breast black. nigrorum (p. 47)

 a2. Chin, throat, and upper part of chest nearly pure white. mindanensis (p. 47)