Table 7 - Summary of Area D cont'd. No. of Birds No. of Sightings No. of Species No. of Birds In Flocks No. of Birds Not In Flocks No. of Flocks No. of Hours No. of Miles September 15 1460 62 12 1391 69 25 8.90 74 16 72 46 14 0 72 0 9.40 89 17 64 53 10 0 64 0 9.10 91 18 363 33 10 324 39 4 8.10 80 19 1587 89 15 1370 217 16 8.75 80 20 289 113 13 136 153 13 11.30 73 21 43 39 9 0 43 0 9.10 87 Totals 3878 435 31 3221 657 58 64.64 574 FLOCK COMPOSITION Species No. % of Species Population In Flocks % of Total Birds In Flocks No. of Flocks Species Present In Wedge-tailed Shearwater 11 39.2 .3 3 Black-vented Shearwater 1349 99.7 41.8 21 Audubon's Shearwater 6 28.5 .1 1 Graceful Storm Petrel 16 80.0 .4 2 Black Storm Petrel 12 52.1 .3 1 Oceanodroma 12 21.0 .3 1 Blue-footed Booby 103 69.1 3.1 9 Blue-faced Booby 142 77.1 4.4 8 Red-footed Booby 932 87.9 28.9 14 Booby 50 94.3 1.5 1 Magnificent Frigatebird 5 41.6 .1 1 Frigatebird 14 56.0 .4 6 Phalarope 16 27.1 .4 2 Swallow-tailed Gull 8 28.5 .2 1 Arctic Tern 8 61.5 .2 4 Sooty Tern 537 92.1 16.6 13 Totals 3221 - 100% -