(Lobipes lobatus). Ninety-five percent of the total number of this species were noted on 13 February near the Galapagos Islands. Phalaropes were almost totally absent south of 5°S. Pomarine Jaeger (Stercorarius pomarinus) This was the only positively identified jaeger species, constituting 48 percent of the total number of Jaegers observed. Color phase totals were as follows: 15 light phase, 18 dark phase, 1 intermediate phase and 2 unrecorded. Color phases were evenly distributed over the survey area. Jaegers were not observed anywhere in the vicinity of the Galapagos Islands. Skua (Catharacta skua) One individual of this species was observed on 31 January at 6°N 82°W in a large feeding flock of Wedge-tailed Shearwaters, Least Terns, Columbian (Brown) Boobies and Pomarine Jaegers. Swallow-tailed Gull (Creagrus furcatus) Twenty-five of this species were observed on 12 February north of the Galapagos Islands, twenty-four of them in a single flock sitting on the water. Eight young birds were distinguished by the white head and neck streaked with brown. Sooty Tern (Sterna fuscata) This species was relatively scarce in the survey area. All of those observed were adults, the largest concentration being a flock of fifty noted on 19 March at 8°N 95°W. Only four individuals were observed south of 5°S. Least Tern (Sterna albifrons) This species was observed only north of the equator. Nearly eighty-five percent of the total number observed occurred on 4 February at 12°N, 88°W, and 55 percent of these were in a single mixed-species feeding flock.