DeBevedini 1964 Feb 22 Isla Santa Cruz to Faler San Cristobal, Galapagos. There were large #s of Northern Phalaropes, mostly in flight; here; largest flock was about 50 and saw 2-300 birds in all. All were clearly in winter plumage yet at this time. Was able to keep awake most of the crossing from Balington to San Cristobal. The waters near Balington were populated by the birds mentioned above. O. gracilis was the commonest species, about 2 dozen being observed. As we went further out #s of birds greatly decreased. O. gracilis was seldom, generally, but in completely replaced by O. leucophrys and still beyond halfway across I saw 2 or 3 O. castroensis. Compared to O. gracilis it is 1/4 again as large in wingspan, but not much longer. As San Cristobal came into view spotted a Tropicbird sitting on the water, tail held high. We went through a number of very dirty slicks and in these O. gracilis (and O. leucophrys a little) and small (mostly single) numbers of Audubon shearwaters were feeding. The petrels were paddling along the slick; the tail is widely spread out &c, wings are almost motionless when they do this. The Audubon shearwater sat on the water and 2 or 3 dove when we approached; surfaced and flew away. Saw several dive-fly conflicts - the bird sat with wings folded, held over the back and peered under the water repeatedly as we approached, and thus usually flew off as we got nearer. Close to San