Leewards, Shearwater, March 1965
Page 9
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Transcription
SI-MNH-955a Rev. 4-9-64 SMITHSONIAN INSTITUTION DIVISION OF BIRDS AT SEA DAILY OBSERVATIONS SUMMARY DATE: March 23, 1965 Total Minutes: 724 (0646-1850) Total Miles 127 1. Total Abundance of birds: No. Sightings No. Birds Birds/Sighting Birds/Mile 317 582 1.84 4.51 II. Abundance of the Shearwater-Petrel-Albatross Group: No. Sightings No. Birds Birds/Sighting Birds/Mile T WT P B T WT P B T WT P B T WT P B 212 130 2 - 316 207 2 - 1.49 1.59 ' - 2.49 1.63 0.02 - III. Abundance of Tropicbirds: No. Sightings No. Birds Birds/Sighting Birds/Mile T RT WT T RT WT T RT WT T RT WT 2 2 / 0.02 IV. Abundance of Terns: No. Sightings No. Birds Birds/Sighting Birds/Mile 66 203 3.08 1.60 V. Abundance of Shorebirds: No. Sightings No. Birds Birds/Sighting Birds/Mile 0 VI. Abundance of Boobys: No. Sightings No. Birds Birds/Sighting Birds/Mile T BF RF B T BF RF B T BF RF B T BF RF B 33 1 21 9 52 1 27 11 1.58 1 1.29 1.22 0.41 0.01 0.21 0.09 VII. Abundance of Frigatebirds: No. Sightings No. Birds Birds/Sighting Birds/Mile 7 9 1.29 0.07 VIII. Abundance of Flocks: Total No. Total No. Total No. No. Feeding No. Feeding No. Feeding Flocks Birds F/Mi. Flocks Birds F/MI. 2 135 0.02 1 123 <0.01