EAC 5, Shearwater, March 1967
Page 285
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Transcription
Jaegers Jaegers were seen occasionally (9) in both non-grid sections. Five were recorded as Pomarine Jaegers, while four were recorded as Jaeger sp. One Pomarine Jaeger was observed one mile off shore in the northern section. Red Phalarope Red Phalaropes (13) were commonly seen in the southern portion of the non- grid area. All occurred singly or in pairs. Once again none were sighted in the northern section. Gulls As in the previous cruises Herring Gulls were infrequently observed near land; only close to the grid area were they commonly sighted. On this cruise 37 were logged (9 adults: 1 immature), 34 in the northern section and 3 in the southern section. Herring Gulls in the southern section were greatly reduced in numbers from previous cruises. As far as other kinds of gulls were concerned, great numbers of them (est. 1200), mostly California Gulls (156 positively identified), were aggregated close to shore along the Santa Barbara channel, some of which briefly followed the ship. No California Gulls were sighted in the southern non-grid section. In the northern section also observed were 11 Western gulls (adults), 3 Glaucous-winged Gulls (immatures), 1 Ring-billed Gull (immature), and 48 Black-legged Kittiwakes (1 adult : 3 immature). In the southern section, on the other hand, Western Gulls were more commonly sighted (21, 1 adult; 1 immature, 1 collected), while only one adult Black-legged Kittiwake was seen (collected). Contrasting this survey to the one before it, Black-legged Kittiwakes were extremely abundant in the prior one (1109 birds) in the same southern area where observations were made. In the previous report, I stated that an exceptional feeding area was responsible for the large aggregation of birds. I also ruled