6. figure 9). The color phase ratios for the various days are quite interesting. Basically there was a light phase population north of 7°N extending to 14°N. South of 5°N there were mainly dark phase birds. The nearest island where the species nests is San Benedicto, over 700 miles away off the coast of Mexico. However, dark phase birds outnumber light phase birds two to one on this island. Therefore, we can conclude that the birds seen between 7°N-14°N were not from San Benedicto, for if they were, we would have expected a much higher proportion of dark phase birds. The only light phase populations close to this area are present on Johnston Atoll and the Hawaiian Islands. It therefore seems likely that the individuals seen between 7° and 14°N are from these island groups. Since only a small number of individuals were seen, it seem unlikely that this is the main wintering area for the population. Possibly it is further east and south. Data collected on the JORDAN and ROCKAWAY will either prove or disprove this idea. Sooty Shearwater (Puffinus griseus) One individual of this species was seen on 5 March as it headed north. Manx Shearwater (Puffinus puffinus) The subspecific identity of this species was not determined, but it is most likely auricularis of the Mexican coast. One individual was seen as far south as 6°50'N, although most of them were seen north of 14°N. Juan Fernandez Petrel (Pterodroma externa externa) Juan Fernandez Petrels were seen in small numbers north of the