J Davis 1957 20. Playa de Santiago, 1 km NW Manguillo, China Nov. 5, 1957. individual is just regressing from breeding condition. On October 25, I collected a ♀, skull mummified - a bird of the year in fresh plumage. At the point where this ♀ was taken, I saw 6 or 8 others, at least, mov- ing about in small flocks. It may be that these groups were family groups, or merely unattached, flocking first-year birds. I. e., it appears as though this species is a late breeder, but that breeding took place far enough back so that birds of the year have completed their postjuvenal molt. And it may be that some birds, second brood individuals, are still in juve- nal, or part-juvenile plumage, although I have seen none as yet. The adult had not yet started to molt. Thus, the whole adult cycle may be noticeably retard- ed relative to other species, i. e., late breeding and care onset of molt. At any rate, it is surprising to find a wholly non-bird, with 5mm. testis (left), at this season. As I recall, Rimophila carpalis in Son- orais also a late breeder, this possibly characteristic of some of the southern Rimophilas. I hope to collect additional specimens. Nov. 6, 1957. In a.m. collected 1½ mi NW Manguillo. After preparing specimens, pockets made ready to leave. Nov. 7, 1957. Left Playa de Santiago early, drove to Cuyutlán, then to