Playa de Santiago, 7 km. NW Manguillo, Colima, Mexico. Oct. 24, 1957. Arrived here c. 5:00 p.m., from Guadalajara. Weather very warm, high humidity, little breeze, noticeably warmer than in December, as judged from my visits here in 1954 and 1955. Oct. 25, 1957. Hunted along road and in adjacent fields & woods 12 mi. N W of this locality, or 15 1/4 mi. NW of Manguillo. Was on road at 6 a.m., still quite dark. Truck flushed 4 or 5 fazanques from road. Shot at one, calling from edge of road, but missed it. Drove on, got light enough to hunt at 6:50. Many birds flying, & vocal. Cassidulus melanicerus abundant, in flocks of up to 20. Large flocks of Ara- ruira, some at least A. colchira V. Livanus sulphureus common in trees and on roadside flower lines & fences. E. difficilis calling from woods at edge of dense jungle, some call "see-ist," typical of E.d.difficlis, others barely trisyllabled "s-ist"; individual or social variation? In open fields, densely overgrown with a 1+ ft high carpet of grass, bushes, and vines, Rinophila unfrida was very common, in flocks of 3-5 birds. One taken from a group of 3 was a first-year bird. Also, in the fields, Volatinia was heard commonly, the double, "zeet-zeet" note given by males in courtship display, and one was shot just after it had completed a characteristic up and down flight, accompanied by the "zeet-zeet" note. Bird was not found in the dense undergrowth. Behavior suggests that this species is showing pronounced gradal activity, at least