COASST Top 10

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).

All Years View as graph

Species Count Percent
Common Murre 4741 25.06
Northern Fulmar 4190 22.15
Large Immature Gull 1787 9.45
Unknown 1690 8.93
Rhinoceros Auklet 764 4.04
Glaucous-Winged Gull 597 3.16
Brandt's Cormorant 521 2.75
Western Grebe 515 2.72
Western Gull 464 2.45
Cassin's Auklet 407 2.15
TOTAL 15676 Representing 83%
of carcasses found by COASST
See all species

2008 View as graph

Species Count Percent
Northern Fulmar 693 29.14
Common Murre 493 20.73
Unknown 271 11.40
Large Immature Gull 147 6.18
Glaucous-Winged Gull 123 5.17
Western Gull 112 4.71
Brandt's Cormorant 70 2.94
Western Grebe 59 2.48
Black-Legged Kittiwake 35 1.47
White-Winged Scoter 27 1.14
TOTAL 2030 Representing 85%
of 2008 total
See all for 2008

2007 View as graph

Species Count Percent
Common Murre 1038 25.40
Northern Fulmar 676 16.54
Unknown 497 12.16
Large Immature Gull 375 9.18
Rhinoceros Auklet 267 6.53
Brandt's Cormorant 155 3.79
Glaucous-Winged Gull 119 2.91
Western Gull 108 2.64
Western Grebe 86 2.10
Short-tailed Shearwater 68 1.66
TOTAL 3389 Representing 83%
of 2007 total
See all for 2007

2006 View as graph

Species Count Percent
Common Murre 409 16.99
Rhinoceros Auklet 332 13.79
Unknown 234 9.72
Northern Fulmar 226 9.39
Cassin's Auklet 182 7.56
Large Immature Gull 180 7.48
Western Grebe 172 7.15
Glaucous-Winged Gull 84 3.49
Western Gull 76 3.16
Brandt's Cormorant 72 2.99
TOTAL 1967 Representing 82%
of 2006 total
See all for 2006

2005 View as graph

Species Count Percent
Common Murre 827 32.75
Large Immature Gull 369 14.61
Northern Fulmar 267 10.57
Unknown 183 7.25
Brandt's Cormorant 129 5.11
Glaucous-Winged Gull 65 2.57
Western Grebe 61 2.42
Cassin's Auklet 57 2.26
Pelagic Cormorant 48 1.90
Western Gull 48 1.90
TOTAL 2054 Representing 81%
of 2005 total
See all for 2005

2004 View as graph

Species Count Percent
Common Murre 938 42.14
Northern Fulmar 331 14.87
Large Immature Gull 261 11.73
Unknown 138 6.20
Glaucous-Winged Gull 81 3.64
Western Gull 61 2.74
Pelagic Cormorant 55 2.47
Sooty Shearwater 38 1.71
Cassin's Auklet 32 1.44
Rhinoceros Auklet 26 1.17
TOTAL 1961 Representing 88%
of 2004 total
See all for 2004

2003 View as graph

Species Count Percent
Northern Fulmar 1488 51.15
Common Murre 542 18.63
Large Immature Gull 211 7.25
Unknown 136 4.68
Glaucous-Winged Gull 55 1.89
Western Grebe 51 1.75
Cassin's Auklet 44 1.51
Pelagic Cormorant 40 1.38
Rhinoceros Auklet 30 1.03
Brandt's Cormorant 30 1.03
TOTAL 2627 Representing 90%
of 2003 total
See all for 2003

2002 View as graph

Species Count Percent
Common Murre 316 22.08
Northern Fulmar 316 22.08
Red Phalarope 150 10.48
Large Immature Gull 142 9.92
Unknown 104 7.27
Sooty Shearwater 41 2.87
Western Grebe 39 2.73
Glaucous-Winged Gull 33 2.31
Pelagic Cormorant 31 2.17
Brandt's Cormorant 27 1.89
TOTAL 1199 Representing 84%
of 2002 total
See all for 2002

2001 View as graph

Species Count Percent
Northern Fulmar 137 19.19
Common Murre 136 19.05
Large Immature Gull 92 12.89
Unknown 82 11.48
Sooty Shearwater 44 6.16
Glaucous-Winged Gull 22 3.08
Western Grebe 21 2.94
Black-Legged Kittiwake 19 2.66
Cassin's Auklet 15 2.10
Brandt's Cormorant 13 1.82
TOTAL 581 Representing 81%
of 2001 total
See all for 2001

2000 View as graph

Species Count Percent
Northern Fulmar 50 24.04
Unknown 44 21.15
Common Murre 31 14.90
Glaucous-Winged Gull 15 7.21
Western Grebe 11 5.29
Large Immature Gull 10 4.81
Rhinoceros Auklet 7 3.37
Sooty Shearwater 5 2.40
Fork-tailed Storm-Petrel 4 1.92
American Coot 3 1.44
TOTAL 180 Representing 87%
of 2000 total
See all for 2000

1999 View as graph

Species Count Percent
Common Murre 11 32.35
Rhinoceros Auklet 11 32.35
Northern Fulmar 6 17.65
Western Grebe 3 8.82
Common Loon 1 2.94
Unknown 1 2.94
Surf Scoter 1 2.94
TOTAL 34 Representing 100%
of 1999 total
See all for 1999