A little farther down I met more Oxyechus vociferus and half a dozen AEqialitis nivosa together. Near a small lagoon much frequented by cattle, I saw one Euphagus cyanoccephalus and one AEqialitis nivosa. Just below the lagoon one or two more Oxyechus vociferus and AEqialitis nivosa seen. Two fine Aquila chrysaetos sailed about for a few minutes. One seemed to be choosing the other for a moment, for it made as if to pounce on him in midair. Finally both disappeared. I cut across the low rolling hills towards the San River and came across a flock of two dozen or so Euphagus cyanoccephalus in the grass and very low brush. On the north side of the river above the lagoon there were many land birds in the trees and on old driftwood. Recognized: Euphagus cyanoccephalus, Sialia mexicana, and Corvus brachyrhynchos. One or two distant Aquila chrysaetos. Ten or twelve large birds of prey in sight high in air up valley; they may have been Cathartes aura of which I had seen none for a certainty thus far. Some of the Corvus brachyrhynchos were standing on the sand and gravel banks near the stream; occasionally a passing bird would give the characteristic call. On the gravel-and sand-banks of the river bed I saw across quite a few Oxyechus vociferus and three or four small sandpipers with them. On the south side of the river I saw several [illegible] melampelum [illegible] flying high over a clump of willow-trees. An occasional Corvus brachy- rhynchos was seen flying. At the southeast of the San River lagoon I saw a couple of Euphagus cyanoccephalus. Proceeded south along beach for mile or so to where a rocky point sticks out and blocks the way at high tide, so that I had to clamber over. Here I saw a Heteractitis incanus. Coming down the beach to this point I saw two hawks of different species and one Ardea herodias. I went on down the beach to Cooper's Point. An occasional Odemia perpicillata was seen on the water and one scoter flying. Thousands of shearwaters working north past the point. Several adult and immature Larus occidentalis flew past the point while I was there. A Sayornis nigricans was noted while coming down the beach.