COASST Species in 2005

While the COASST species list totals more than 100, the majority of birds found are of only a few species. The following tables (and graphs) provide data on the top 10 species found cumulatively, and in each year. Data include the total number of birds found of each species and the percent of the overall total represented by each species. Note that the increase in number of birds found over time reflects an increase in survey effort (not an increase in the number of dead birds).

Total species: 77

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Species Count Percent
Common Murre 836 35.20
Large Immature Gull 373 15.71
Northern Fulmar 273 11.49
Brandt's Cormorant 129 5.43
Glaucous-Winged Gull 66 2.78
Cassin's Auklet 62 2.61
Western Grebe 62 2.61
Western Gull 48 2.02
Pelagic Cormorant 48 2.02
Rhinoceros Auklet 41 1.73
Sooty Shearwater 40 1.68
California Gull 38 1.60
Red Phalarope 37 1.56
White-Winged Scoter 31 1.31
Short-tailed Shearwater 30 1.26
Pigeon Guillemot 26 1.09
Double-Crested Cormorant 22 0.93
Surf Scoter 20 0.84
Black-Footed Albatross 16 0.67
American Crow 15 0.63
Caspian Tern 10 0.42
Pacific Loon 9 0.38
Common Loon 9 0.38
Bufflehead 8 0.34
Varied Thrush 7 0.29
Horned Puffin 7 0.29
Leach's Storm-Petrel 6 0.25
Northern Pintail 6 0.25
Black-Legged Kittiwake 6 0.25
Heermann's Gull 6 0.25
Fork-tailed Storm-Petrel 6 0.25
Green-winged Teal 5 0.21
Great Blue Heron 4 0.17
Marbled Murrelet 4 0.17
Herring Gull 4 0.17
Mew Gull 4 0.17
Clark's Grebe 3 0.13
Dunlin 3 0.13
Rock Dove 3 0.13
Mallard 3 0.13
Canada Goose (canadensis) 2 0.08
Greater White-fronted Goose 2 0.08
American Wigeon 2 0.08
Brant Goose 2 0.08
Pink-footed Shearwater 2 0.08
Sanderling 2 0.08
Red-Throated Loon 2 0.08
Northern Shoveler 2 0.08
Wilson's Warbler 2 0.08
Brown Pelican 2 0.08
Black Scoter 2 0.08
Bonaparte's Gull 2 0.08
Red-necked Grebe 2 0.08
Ring-necked Pheasant 1 0.04
Canada Goose (minima) 1 0.04
Great Horned Owl 1 0.04
Ancient Murrelet 1 0.04
Surfbird 1 0.04
American Coot 1 0.04
Buller's Shearwater 1 0.04
South Polar Skua 1 0.04
Winter Wren 1 0.04
Peregrine Falcon 1 0.04
Red-legged Kittiwake 1 0.04
Mottled Petrel 1 0.04
Laysan Albatross 1 0.04
Bald Eagle 1 0.04
Common Merganser 1 0.04
European Starling 1 0.04
Horned Grebe 1 0.04
Western Sandpiper 1 0.04
Glaucous Gull 1 0.04
Emperor Goose 1 0.04
Chicken 1 0.04
Tufted Puffin 1 0.04
American Robin 1 0.04
TOTAL 2375 Representing 9%
of carcasses found by COASST
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