Field Notes Doug Bell May 4, 1989 the Peregrine stoop on a Black-crowned Night Heron, hit it rather hard with its feet, then fly off. After we went down to the beach I got the gun out and proceeded to try to collect nesting gulls "diplomatically". Scrambled up the N. east terrace, shot 2 birds on territory (DAB 446,447); then another near its nest on the beach (DAB 448). 5 shots, 3 gulls. Summary of birds on Red Rock, SF. Bay: 1) 85 Black-crowned Night Herons (+ nests in poison oak & cypress trees) 2) 90 Western Gull nests (mostly on top counted); w/ {34 fresh nests + 56 nests w/eggs} 351 potential nesting gulls counted on boat survey - all cliffs, etc.; or ~ 175 nests total for the island. % estimate 150 - 200 Western Gull nests on rock. 3) Song Sparrows - nesters 4) House Finches - " " 5) White-throated Swifts - nesters 6) Canada Goose - 2 nests w/eggs 7) Peregrine Falcon - ♀, juvenile.