COASST Species in 2009

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: 94

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Species Count Percent
Common Murre 1691 29.75
Northern Fulmar 1070 18.82
Surf Scoter 750 13.19
Large Immature Gull 444 7.81
White-Winged Scoter 225 3.96
Pelagic Cormorant 140 2.46
Brandt's Cormorant 137 2.41
Western Gull 135 2.38
Glaucous-Winged Gull 122 2.15
Western Grebe 104 1.83
Sooty Shearwater 95 1.67
Brown Pelican 78 1.37
Rhinoceros Auklet 64 1.13
Black-Legged Kittiwake 63 1.11
Red-Throated Loon 59 1.04
Pacific Loon 47 0.83
California Gull 32 0.56
Short-tailed Shearwater 30 0.53
Double-Crested Cormorant 28 0.49
Pigeon Guillemot 26 0.46
Cassin's Auklet 18 0.32
American Crow 17 0.30
Black-Footed Albatross 17 0.30
Common Loon 15 0.26
Thick-billed Murre 14 0.25
Heermann's Gull 14 0.25
Northern Pintail 13 0.23
Ancient Murrelet 13 0.23
Canada Goose (minima) 11 0.19
Parakeet Auklet 11 0.19
Caspian Tern 11 0.19
Mallard 10 0.18
Canada Goose (canadensis) 9 0.16
Green-winged Teal 9 0.16
Red Phalarope 9 0.16
Greater White-fronted Goose 8 0.14
Horned Puffin 8 0.14
Tufted Puffin 8 0.14
Herring Gull 7 0.12
Snow Goose 7 0.12
Fork-tailed Storm-Petrel 7 0.12
Brant Goose 6 0.11
Greater Scaup 5 0.09
Rock Dove 5 0.09
Bufflehead 4 0.07
Mew Gull 4 0.07
Arctic Tern 4 0.07
Whimbrel 4 0.07
Barred Owl 4 0.07
Ring-billed Gull 4 0.07
Pink-footed Shearwater 4 0.07
Crested Auklet 3 0.05
Leach's Storm-Petrel 3 0.05
Laysan Albatross 3 0.05
Great Blue Heron 3 0.05
Common Raven 3 0.05
Black Scoter 3 0.05
Northwestern Crow 3 0.05
Northern Flicker 2 0.04
Marbled Murrelet 2 0.04
Bonaparte's Gull 2 0.04
Black Oystercatcher 2 0.04
American Wigeon 2 0.04
Glaucous Gull 2 0.04
Greater Yellowlegs 2 0.04
Bald Eagle 2 0.04
Long-billed Curlew 1 0.02
Harlequin Duck 1 0.02
Mottled Petrel 1 0.02
Northern Shoveler 1 0.02
Red-tailed Hawk 1 0.02
Long-tailed Jaeger 1 0.02
Great Horned Owl 1 0.02
Varied Thrush 1 0.02
Dark-eyed Junko 1 0.02
Gadwall 1 0.02
Black-bellied Plover 1 0.02
American Coot 1 0.02
Canada Goose (aleutian) 1 0.02
South Polar Skua 1 0.02
Sabine's Gull 1 0.02
Turkey Vulture 1 0.02
Song Sparrow 1 0.02
Red-legged Kittiwake 1 0.02
Red-necked Phalarope 1 0.02
Chicken 1 0.02
Lesser Scaup 1 0.02
Savannah Sparrow 1 0.02
Parasitic Jaeger 1 0.02
Cooper's Hawk 1 0.02
Clark's Grebe 1 0.02
Sanderling 1 0.02
Horned Grebe 1 0.02
TOTAL 5684 Representing 21%
of carcasses found by COASST
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