Erickson, M.M. 1984 Yuma First Yuma 6. Jan. 5. Ran traps, two gone; no captures; near location of one of lost traps, small medium sized carnivore tracks common; bird tracks numerous near point where other trap lost. Paint gone from all traps. Rearranged all of traps; hunted for thrashers on Calif. side of Colorado River N and west of Yuma; few birds of any kind seen, high wind blowing. 11:00 - 1:00 spent on Arizon side of river south of Yuma; region under cultivation. Shrikes common on wires; Sparrow Hawks also, esp. near alfalfa fields. 4:00 - 6:00 - Ran trap line; no captures; hunted birds on mesa on Arizona side of river east of Yuma; no bird seen. Jan. 6. 7:30 - 11:30 am spent on lake above Laguna Dam hunting rails. Region before building of dam was under cultivation, except for small part of it; now a shallow lake mostly 1 1/2 - 1 ft. deep; a few place 2 1/2 ft. with relatively little open water, and extensive tule growth throughout; also dead mesquite stubs common. Birds seen. Common Loon, Cormorant, Great Blue Herons, Black-crowned Night Heron, Egret, bitterns, White Pelican, Coot, long sparrow, Red-winged blackbird, Marsh Hens, and one Rail sp.? Trapper who was managing boat reported a second one flew over and into tule. He did not know name of bird, but was familiar with it, at least, to the extent he had seen it while trapping for muskrats. "Always seen them inside the lake not on