66. At Cooper's Point I watched the flight of shearwaters which seemed endless. Even now as I write a mile or two up the beach I can still see them offshore working northward. Going up the beach to the Sur River, I saw two or three Sayornis nigricans, an occasional cormorant; a wandering Heteractitis incanus at the same place I saw one going down, quite a few Larus occidentalis, and one Larus californicus with the mottled head of the winter plumage. All of the gulls were seen flying, only one being seen on the beach. North of the rocky point I had to climb over I found three Calidris arenaria right at the water's edge. The Heteractitis incanus I surprised alighted on the sand beach for a minute and then flew back to the rocks. At the mouth of the Sur I came across a Tringoides macularius, and I also saw several rosters on the water just outside the surf. While on top of Cooper's Point a Cathartes aura flew close by overhead; the skin of its head appeared red and I presume it was an adult. Near a lagoon about ½ mile north of the Sur River I saw quite a few Oxyclechus vociferus and four or five Aegialitis nivea. Four sandpipers appeared on the scene together and one proved to be Limonites minutilla and the others to be Eremetes pusillus. While I was sitting on a log at the lagoon a Cathartes aura came by and a flock of thirty or more Otocorys alpestrius alighted on the shores and sandbars evidently to drink. Coming up the beach I met eight or ten more Oxyclechus vociferus high up on the beach among the driftwood; they were very wild. Still farther along I saw an oc- casional gull and encountered a rock bird which got away so quickly I was not sure what it was. On the beach just south of the False Sur, I obtained two Arenaria melanotepha which had been feeding on fly pupae and small crustaceans which they evi- dently obtained from the masses of dead seaweed which are covered with myriads of flies. Saw two more Arenaria melanotepha alight on a rock. Low tide now. An Ardea herodias flew up from the usual spot at the base of the bluff. Between False Sur and Pt. Sur I saw an occasional rooster, cormorant, and Larus occidentalis. Three Phalacrocorax pelagicus were roosting on the face of the cliff, but all left as I approached.