10 TABLE #2. RELATIVE ABUNDANCE OF BIRDS BY SPECIES, EAC 13, 30 MAY-12 JUNE, 1967. SAN FRANCISCO TO PANAMA Species No. Seen Avg. Lin. Dens. for Days of Occurrence Only Overall Linear Density Black-footed Albatross 17 .08 .04 Laysan Albatross 1 .02 -- Sooty Shearwater 49 .35 .13 Wedge-tailed Shearwater 619 5.10 1.66 Pale-footed Shearwater 81 6.6 .22 Pink-footed Shearwater 1 .05 -- Manx (and Manx-type) Shearwater 5193 38.7 14.6 Christmas Shearwater 20 .42 .05 Shearwater sp. 3 -- .01 Cooks Petrel 184 2.6 .49 Shearwater/Petrel 5 -- .01 White-rumped Storm Petrel 271 .82 .73 Dark-rumped Storm Petrel 27 .21 .07 Black Storm Petrel 83 .53 .22 Least Storm Petrel 1 .05 -- Storm Petrel sp. 52 .16 .14 Red-billed Tropicbird 6 .03 .02 Brown Booby 118 1.08 .32 Red-footed Booby 5 .18 .01 Blue-faced Booby 11 .24 .03 Booby sp. 5 -- .01 Frigate sp. 28 .50 .08 Red Phalarope 19 .13 .05 Phalarope sp. 7 -- .02 Pomarine Jaeger 1 -- -- Long-tailed Jaeger 1 -- -- Skua 3 .06 .01 Common (Brown) Nodd y Tern 49 2.4 .13 Black Tern 265 3.0 .71 Sooty Tern 900 13. 2.32 Tern sp. 10 -- .03 Sabines Gull 10 .19 .03 Gull sp. 1 -- -- Bird sp. 451 -- 1.22 8517 22.9