2 mi. W. of Elk Grove, at sea level, Humboldt Co., Calif. June 14, 1946 immatures (about 60%). 25% were Heermann Gulls. Their dark bodies and mantles and white heads set them well apart from the Westerns, although the 2 species were well mixed within the flocks. The gulls were very wary and I could not get very close to them. Took one shot at a flying Heermann gull but missed it. The last flock of Gulls seen was the largest. They were grouped at the east end of a large lagoon 100 yards east of the beach. Of the 75 birds in the flock, 20-25% were Heermanns, the rest Westerns. Three California Murres were noted lying dead on the beach, the bodies apparently having lain in situ for a considerable period judging from their condition. I returned down along the base of the bluffs. Grass grows down the draws in the bluffs and out on the beach for a distance of 150 yards. It is especially luxuriant where small streams flow down from the bluffs and end in boggy areas at the bases of the bluffs. Cattle were seen feeding in the dewy grass patches, and cattle sign was noted almost all the way home. Raccoon tracks were common, ba-