Peteika 1943 Nov. 7 Bay Farm Island, Alameda Co., Calif. Of special interest to me were the Pigeon Hawk and Burrowing Owl. The Pigeon Hawk was observed to fly into a flock of small sandpipers (which took wing as the hawk approached) and take one of them, apparently on wing. The hawk then flew southward, carrying the sandpiper, and not far from the site of the take, the pigeon hawk was attacked by a Sparrow Hawk which pounced upon the former several times. The pigeon hawk dropped his prey, returning to the water margin and perching on a post. Later this bird, probably a female (judging by size; the color could have been that of an immature or adult bird), moved to a cypress tree, where it remained perched, apparently watching for small passerines. Later, this bird was seen circling over the open country near the golf course, where another Sparrow Hawk darted at it. The burrowing owls were observed on open, drained marshland south of the golf course. The land was deeply and irregularly furrowed as a result of excessive drying. Some of the owl burrows appeared to be cavities resulting from this drying; others appeared to have been dug. A number of pellets were collected.