species. The size, flight pattern, and contrasting upper and lower body colors were noted, but the bird was not seen close enough to be sure. Black Petrel Loomelania melania 8 Five of the birds were seen at sea on two different days. The remaining were seen on 5 May just off the Coronado Islands where they breed. Leach Storm Petrel Oceanodroma leucorhoa 12 Subspecific identification of O. leucorhoa is perplexing if not impossible. There are definitely three subspecies (O. l. beali, chapmani, soccorroensis) which breed in the area and are found at sea. There are an additional two subspecies (O. l. willetii and kaedingi) occurring in the area -- the subspecific status of which has not been resolved. The nominate race may also occur here at times. Five birds were definitely identified as being of this species. All of these had little or no white on the rump. An additional eight birds were seen and recorded only as storm petrel sp. It is probable they are of this species but I am not familiar with the Ashy Petrel (Oceanodroma homochora) which breeds in the Coronados and north and some of the sightings may possibly belong to this species. Red-billed Tropicbird Phaethon aethereus 1 The Red-billed Tropicbird was seen on 24 April at 29°30'N, 117°18'W. This bird flew around the ship for some time giving several people a very good look at it. At sunset another tropicbird was seen. The bird was over a mile away but as we were still in the same area it is probable that it was the same bird. Cormorants sp. Phalacrocorax sp. One bird was seen on 5 May off the Coronado Islands. Glaucous-winged Gull Larus glaucescens 1 One bird was seen on 20 April at approximately 31°50'N, 117°49'W. Western Gull Larus occidentalis 441 Western Gulls were seen most days while at sea. All birds present in the area at this time appear to belong to L. o. wymani. Sabine Gull Xema sabini 22 This small arctic breeder was in migration through the area during the entire period of the survey. All birds seen were flying in a northerly direction and low to the water. One exception was a group of five birds which flew to several hundred feet above the water and swirled for several minutes. These birds then returned to just above the surface and continued north.