P. PEARSON 1950 35 at a point where there was still a little daylight were over a hundred "owls" sitting on ledges and flying about making much racket by squawking. The eyes shine but rather faintly. Shot one, 3223, and a bat (3222) that was hanging on the side of the cave. We did not go in beyond the owls because the cave narrows to 6 or 7 feet and the water became quite deep. On the way home only a few hundred yards downstream from the owl cave found another small limestone cave with crawl-in entrances. Inside were a dozen or so bats. Was able to pick 8 off the walls although they were not completely torpid, (3224-3227 and later). Returning to our cave we noticed a large cavity near the entrance containing perhaps 50 of the big Phyllostomids (leaf-nosed), 3228. At least a half-dozen of the "owls" were flying near the ceiling of our cave at dusk and for perhaps a half hour after. Shined my carbide lamp for about 2 hours. The "owl" had 1 seed like a cherry pit in its stomach. Before going to bed (9:30) did the rounds of the cave and found large numbers of bats in all the regular roosts (including the leaf-nosed roost) July 29 The owls were back just at daybreak. Shot one to look at stomach: 3 pieces of what looked like nut shell. Temp- erature of cave yesterday varied from 22 to 23°. The small parrots with red forehead were also flying in and out of the cave at about 7 a.m.