SI-MNH-955a Rev. 4-9-64 SMITHSONIAN INSTITUTION DIVISION OF BIRDS AT SEA DAILY OBSERVATIONS SUMMARY DATE: 18 Apr 65 Total Minutes: 759 Total Miles 140 I. Total Abundance of birds: No. Sightings No. Birds Birds/Sighting Birds/Mile 49 159 3.24 1.14 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 38 65 2 60 9 52 1.58 .15 1 1 .43 .06 .04 .01 III. Abundance of Tropicbirds: No. Sightings No. Birds Birds/Sighting Birds/Mile T RT WT T RT WT T RT WT 0 0 0 0 IV. Abundance of Terns: No. Sightings No. Birds Birds/Sighting Birds/Mile 10 94 9.4 .67 V. Abundance of Shorebirds: No. Sightings No. Birds Birds/Sighting Birds/Mile 1 1 1.0 .01 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 0 0 0 0 VIII. Abundance of Flocks: Total No. Flocks Total No. Birds Total No. F/Mi. No. Feeding Flocks No. Feeding Birds No. Feeding F/MI. 3 102 .02 1 90 .01