Table 2: Sectional Breakdown of Eastern Pacific Grid Bird Populations, 1-9 April, 1967 NORTHERN CENTRAL SOUTHERN No. % of Grid % of total birds Birds/sq. mile No. % o/o B/sq. mi. No. % % B/sq. mi. Species Total IN NORTH section Black-footed Albatross* 34 51.5 12.4 .031 20 30.3 12.7 .017 12 18.2 7.6 .008 Fulmar 3 .75 1.1 .006 1 25 .6 .002 0 N.Z. Shearwater 3 100.0 1.1 .006 0 Pink-foot Shearwater 0 1 100.0 .6 .002 0 Herald's Petrel 1 100 .4 .002 0 0 Leach's Storm Petrel 42 33.6 15.3 .153 16 12.8 10.1 .054 67 53.6 42.7 .167 Red Phalarope 129 45.2 46.9 .938 99 34.8 62.6 .668 57 20.0 36.2 .284 Clauous-winged Gull 0 1 100 .6 .002 0 Herring Gull 19 82.6 6.9 .034 2 8.7 1.3 .004 2 8.7 1.3 .003 Sabine's Gull 1 100 .4 .002 0 0 S. Meadowlark 1 100 .4 - 0 0 Shearwater/Petrel 5 62.5 1.8 .009 0 3 37.5 1.9 .004 Sooty/Slenderbill 9 29.0 3.3 .016 13 42.0 8.2 .022 9 29.0 5.7 .011 Small Pterodroma 3 75.0 1.1 .006 0 1 25.0 .6 .001 Storm Petrel sp. 5 41.7 1.8 .018 4 33.4 2.5 .014 3 24.9 1.9 .007 Gull sp. 16 94.0 5.8 .040 0 1 6.0 .6 .001 Land Bird sp. 2 100 .7 - 0 0 Bird sp. 2 40.0 .7 .004 1 20.0 .6 .002 2 40.0 1.3 .003 TOTALS 275 100.1 1.253 158 99.8 .787 157 99.8 .439 Total Miles 275 291 401 * The total for Black-footed Albatross does not agree with the grid total due to an allowance for birds following the ship from one area to another.