J Davis 1957 Playa de Santiago, 1 km NW Manguillo, Chihuahua Oct. 30, 1957. Presumed that most ornithologists in California have of its foraging habits. In addition to the new birds collected, I noted a ? Record, whether Phlaeophysaris or Pachyrhamphus I could not tell before the bird flew. A Buteo vitreus was seen at the top of a dead tall, dead tree. I have seen one of these hawk each day, regardless of where I have hunted. They seem to be common, but so far, have always been solitary, and on high perches, 30-50 ft up. N.B., the Pigeon Doves, although apparently common here, do not answer imitations of their call. At least 10?, and 14 dragon terns, I collected. They seem to be restricted to decidu- ous woodland, well-shaded, perched motionless 15-25 ft up in trees. Some individuals seem quite wary. One remained motionless, 15+ ft up in a tree, for at least 10 minutes, while we moved about searching for birds. Its color of the ? skinned today was bright yellow. Several Amazilia mitila are seen each day, the only species of Hummer seen so far. Oct. 31, 1957 Hunted again along the trail 1½ mi NW Manguillo. The Record collected, an adult ?, was one of a pair. Both birds stayed 20-30 ft up in tall trees, keeping 10-20 ft apart, & frequently giving a loud, chattering call. The Lityra, also an adult ?, was also one of a pair, or at least a duo. Both birds stayed high, 40-50 ft up in tall trees, within