J Davis 26. Tecoman, Colima, Mexico Nov. 14, 1957 This last rather heavy, low thunderclap. The river at the point where the road hits it is wide, shallow, and very sparsely vegetated, and few birds were seen. There is a ford here, leading to the Nichoacan shore, passable for trucks & buses. Along the way, we noted Aimophila Rufinada commonly in vine-covered hedgerows along fence lines; Molothrus ater common; Sarda Sparrow fairly common; 2 Barabato unidentif.; 17 Volatinia; 1 cardinal; pair of Blue Grosbeaks; several Passerina versicolor. The Aimophile are definitely in small groups of 4-6 (family groups?), yet the ? taken today had a stage 1 flood feather + 3 freshly moltured follicles. The ? taken had a left tertis 6x4 mm. Oviduct of the ? was fully expanded. She had obviously just laid a 3 egg clutch. 5 other fol- licles were expanded to 2 mm, faint yellows, i. e. flushed with yolk. Birds are still breeding. I looked up the spe- cimen taken near Manyalito on Oct. 25, with skull unossified. It is a molting juvenile, some four juvinal dorsal feathers, but pale, lacy juvenile plumage on upper dorsum & rump. It is obviously a first brood juvenile. Surprising is the fact that adults have not yet started to molt, the rectrices of both males & females are worn to a frazzle, some nearly reduced to the rachis. On the way out of town this a.m., I noted 2 & English Sparrows on rooftops. Yesterday at the Rio Arme- ria, I noted a Tyrannus cassiornatis dive at a flying Owl perched in a tree, without forcing it to move.