large gulls flew over high in the air. One flock of thirty circled about at an immense height for several minutes and then flew off to the southeast descending con- siderably. Larus philadelphia were very common, two-thirds of them being wholly hooded. They were [illegible] not wary, flying quite close to the boat. When sitting on the mud they could often be heard making short croaking calls. They were also heard giving rather shrill short [illegible] calls when several of them were after one morsel. About twenty collected about some scraps I threw overboard; hovering in the air for a moment and then dropping to pick up something, not remaining on the water however. I saw two making attempts to carry off a piece too large for them. They sat on the water consider- ably, one flock of about forty being passed just outside the slough. Their revolutions or the wing are surprising and are somewhat like a shearwater's.