J Davis 1957. 29, Tecuan, Colima, Mexico Nov. 15, 1957 In a.m. hunted along the road to Cerro de Ortega. Enormous flocks of cowbirds are frequently seen flying over the fields. Some of these flocks are of Molothrus. Lark Sparrows were seen occasionally, usually solitary, nowhere near as common as near Colima. Sterna fluvialis is abundant here, several males seen and many females and/or immatures. These latter are found mainly in heavy brush, in which they move about more like sparrows than Orioles. Surprising was a Wagler Oriole collected from the top of a 20 ft tree. Another male of this species was seen in a roadside tree several miles from where the first was noted collected. Two Cardinals were seen - one collected. Rinophila Rufilauda common. The two collected are males with enlarged, but probably regressing gonads. No. 2437 has several new body feathers coming in. An adult & Brutting collected is molting heavily (Guanacaste or P. versicolor), & a grassquit collected has skull ossified; it's about 1/3 molted from brown to blue-black plumage, probably a second-year bird. No tail molt yet, the tail is worn & ragged. One Acrites was noted, either A. striates or O. Coferii. Several Yellow Warblers noted. In a courtyard offsite the hotel, from which we can look down, there's each morning a large flock of Red-eyed Brown-headed Cowbirds & a few Brewer Blackbirds, attracted by a