1976 Walter D. Koenig 25 Melanerpes formicivorus Plagues Hastings Reservation 15 October 900. All 3 birds are here in the 2° tree frantically but futilely attempting to keep the Scrub Jays, of which there are about 8 at any one time, from stealing acorns still in on the tree. 1000. I watched the storage tree (2° tree) counting the number of flights made out of the tree by Jays, Crows, and Magpies. These birds were only rarely seen leaving without an acorn in their bills. The woodpeckers were here attempting a defense, but I have the not up to see, perhaps, what happens without them later on. Real Time Scrub Jay Magpie Crow 1000-1015 (15min) 89 (2 possibly (unsuccessful) 1 2 1015-1030 (15min) 136 1 0 1030-1045* (15min) 90 0 0 *822 caught at 1036 in net. No AW chasing from then on. 2 Scrub Jays caught also. 1130-1145* (15min) 69 0 0 *Woodpeckers did not chase at all; apparently they've more or less given up. 1145-1200* (15min) 24 0 0 *No jays at all here for first 10 minutes. Then they and the woodpeckers both came. 1200-1215* (15min) 54 0 0 *Woodpeckers were in the tree a small percentage of the time, but were harvesting/storing acorns, not chasing the jays. 1430-1445* (15min) 22 0 1 1445-1500* (15min) 16 0 1