HLW&F 1965 Amophila sumichrasti August 14 3mi. E. Tehuantepec Oaxaca. (5) Saw birds either in pairs or in family groups. John collected one pair which was almost entirely in adult-like plumage. Tail feathers were acute + few spots still molting. Skull not ossified. Also took 2 of 3 fledglings. Thus it seems that breeding season probably starts in June + continues at least thru early July. Did not see any fledgling as in A. rubecunda acuminata + A. humeralis. This may be a function of time of breeding cycle. A. mystacalis also had large young + was not in groups. For this + semichrasti it is not possible to say now if they flocked during early portions of breeding season.