EAC 26, Hall, October-November 1967
Page 33
Image from the Biodiversity Heritage Library. Contributed by Smithsonian Institution Archives. | www.biodiversitylibrary.org
Transcription
section alone being void. Over 70 percent of the Red Phalaropes were recorded in a five-mile stretch in section "T". These flocks were not noted in association with slicks as had been the regular phenomenon in previous observations in this area. A handful of small flocks of Reds and the single Northern were seen on slicks in sections "Y" and "W". Sightings of individuals in the western areas were partly of individuals heading south. The increase of birds at this time of year may possibly indicate that the south-bound fall migration is much more delayed than previously thought. Bonaparte's Gull Larus philadelphia Both adults and immatures are presently moving south at some distance from the coast. The species was common in the nongrid area to the north and appeared in low numbers on the easternmost edge of the Grid. Two immatures were collected and it would appear that immatures venture farther offshore than do adults. Herring Gull Larus argentatus 2 2 58 2 3 4 0 0 0 # observed in each section The high numbers recorded in section "T" are somewhat artificial. Thirty-three birds followed the ship onto the Grid from the coastal non- gird leg to the north. Twenty-five birds appeared on the 8th just as a westbound freighter passed seven miles astern of the survey vessel. The ship following tendency which evidently is exaggerated at this time of year no doubt plays an important part in distributing Herring Gulls out into the pelagic zone. Three of the 58 birds in section "T" were adults (5 percent), the remaining immatures were about three-fourths 1st winter birds and one-fourth 2nd winter birds. Of the birds in the rest of the Grid four of 13 (30 percent) were adults. No birds were recorded in the southern third. Tern sp. Arctic (?) Tern A group of four unidentified sterna was observed heading east in section "W". A single bird heading south at sunset in section "X" appeared to be gray below and probably was indeed an Arctic. The date 6 November is very late for this typically early migrating species. Cassin's (?) Auklet Two small (all dark?) alcids were pursued from the skiff in section "Z".