and the abundance of flocks. In most cases these figures along with the tables are sufficient to explain my findings for a particular species on this trip. However, some information cannot be expressed in this manner which necessitates the following species accounts. Only those species with additional information are discussed in this section. SPECIES ACCOUNTS Waved Albatross (Diomede irrorata) This albatross was found only near the Galapagos. Murphy (Oceanic Birds of South America 1936) gives the impression that this species is seldom found north of Hood Island where they nest. However, 23 were observed in an area over 100 miles northwest of Hood Island. Procellaria sp. On 31 August I saw a large all dark procellarid at a distance. It impressed me as being larger than any member of this group that I had seen previously, but smaller than an albatross. At the time, I identified it as a member of this genus, possibly parkinsani which has been previously recorded in this general area. I am confident that it was not any of the other all dark procellarids which occur in this area - (all of which I have seen). However, since I never did get a close look at the bird the identi- fication is highly tentative. Wedge-tailed Shearwater (Puffinus pacificus) Wedge-tails, mainly dark phase, were fairly common over a large portion of the study area (see FIGURE 5). In February and March light phase popu- lations were found in the area. This indicates that there are two different populations utilizing the area at different times of the year. Since this species only nests on one island in the eastern Pacific, at least one of these population must come from an area to the west of the study area -