EAC 26, Hall, November 1967
Page 26
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Transcription
3 Laysan Albatross is here statistically treated like the other birds whereas Black-footed Albatross is again eliminated from the regular tables. Black-footed Albatross Diomedea nigripes Total # Obs. = 31 Avg. #/day = 3.8 Median of 8 days = 4 High max. day count = 7 Low max. day count = 2 Of the 28 birds with rump color noted only one was sharp white; the remainder were all dark. Numbers have increased slightly over the low point reached on the last survey. There appears to be a tendency for higher numbers in the southwest. Fulmar Fulmarus glacialis # Obs. = 1 The virtual absence of Fulmars in the Grid was very unexpected. Sooty Shearwater Puffinus griseus # Obs. = 204 After the abrupt southeast migration peak in mid-September a period of about a month passed wherein Sooty numbers over the coastal area were low. Through the November surveys, however, another influx of southward- moving birds has been noted. This secondary migration is on a broader front and less concentrated than the first. Unlike the well-defined east-southeast direction in September, the present movement is due south. One collected bird was an immature male and suggests the possibility that the present movement is of immature and non-prebreeding birds, whereas the September peak may have been prebreeding adults. Pale-footed Shearwater Puffinus carneipes # Obs. = 2 The second and third records for the Grid area. Both were seen in Section W. New Zealand Shearwater Puffinus bulleri # Obs. = 1 The single bird was seen heading northeast in Section Y. Small Pterodroma # Obs. = 4 The three sightings scattered over the Grid were possibly referable to P. cooki.