SI-MNH-955a Rev. 4-9-64 SMITHSONIAN INSTITUTION DIVISION OF BIRDS AT SEA DAILY OBSERVATIONS SUMMARY DATE: 16 Apr 65 Total Minutes: 750 Total Miles 125 I. Total Abundance of birds: No. Sightings No. Birds Birds/Sighting Birds/Mile 106 398 3.75 3.18 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 73 19 1 8 130 55 1 9 1.78 6.84 1 1.13 1.04 .44 .01 .07 III. Abundance of Tropicbirds: No. Sightings No. Birds Birds/Sighting Birds/Mile T RT WT T RT WT T RT WT 2 1 0 2 1 0 1.0 1.0 0 .02 .01 0 IV. Abundance of Terns: No. Sightings No. Birds Birds/Sighting Birds/Mile 28 250 8.93 2.0 V. Abundance of Shorebirds: No. Sightings No. Birds Birds/Sighting Birds/Mile 0 0 0 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 0 0 0 0 VII. Abundance of Frigatebirds: No. Sightings No. Birds Birds/Sighting Birds/Mile 2 2 1.0 .02 VIII. Abundance of Flocks: Total No. Total No. Total No. No. Feeding No. Feeding No. Feeding Flocks Birds F/Mi. Flocks Birds F/Mi. 12 277 .10 8 240 .06