EAC 6, Shearwater, April 1967
Page 6
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Transcription
section where none were seen on the last cruise. East-west density distribution again favored the western half. Although some single birds were recorded, most sightings were of flocks of varying size. Five specimens were collected; all were in fat condition, and none had enlar- ged gonads. Alcids This is the first grid cruise on which no alcids were seen. Western Meadowlark (Sturnella neglecta) 1 Land Bird sp. (Unidentified) 2 A single Western Meadowlark was collected in the eastern half of the north section more than a hundred miles from the mainland. An additional two landbirds were seen flying aboard a passing ship within twenty miles of the area where the meadowlark was collected. More than likely, all of these birds were stray migrants. Small Pterodroma (Pterodroma sp.) 4 Three sightings were in the western half of the north section. Another sighting in the eastern half of the south section was identified as probably being Pterodroma leucoptera and had field marks resembling those of the brevipes population. To date most of the small Pterodroma which have been reasonably well seen have been thought to be P. leucoptera. A few, which have yet to be well viewed, may be Cook's Petrels (Pterodroma cookii).