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 7013 28.06
Northern Fulmar 5655 22.63
Large Immature Gull 2470 9.88
Surf Scoter 938 3.75
Rhinoceros Auklet 861 3.45
Glaucous-Winged Gull 792 3.17
Brandt's Cormorant 721 2.88
Western Grebe 677 2.71
Western Gull 661 2.64
Pelagic Cormorant 489 1.96
TOTAL 20277 Representing 81%
of carcasses found by COASST
See all species

2010 View as graph

Species Count Percent
Common Murre 121 18.09
Northern Fulmar 91 13.60
Large Immature Gull 83 12.41
Brandt's Cormorant 41 6.13
Glaucous-Winged Gull 39 5.83
Western Gull 37 5.53
Sooty Shearwater 26 3.89
Western Grebe 25 3.74
Brown Pelican 23 3.44
Pelagic Cormorant 22 3.29
TOTAL 508 Representing 76%
of 2010 total
See all for 2010

2009 View as graph

Species Count Percent
Common Murre 1691 29.76
Northern Fulmar 1069 18.81
Surf Scoter 750 13.20
Large Immature Gull 443 7.80
White-Winged Scoter 225 3.96
Pelagic Cormorant 140 2.46
Brandt's Cormorant 136 2.39
Western Gull 135 2.38
Glaucous-Winged Gull 122 2.15
Western Grebe 104 1.83
TOTAL 4815 Representing 85%
of 2009 total
See all for 2009

2008 View as graph

Species Count Percent
Common Murre 867 29.06
Northern Fulmar 740 24.81
Large Immature Gull 242 8.11
Glaucous-Winged Gull 150 5.03
Western Gull 127 4.26
Brandt's Cormorant 89 2.98
Western Grebe 75 2.51
Brown Pelican 50 1.68
Sooty Shearwater 47 1.58
Rhinoceros Auklet 39 1.31
TOTAL 2426 Representing 81%
of 2008 total
See all for 2008

2007 View as graph

Species Count Percent
Common Murre 1052 28.55
Northern Fulmar 728 19.76
Large Immature Gull 380 10.31
Rhinoceros Auklet 267 7.25
Brandt's Cormorant 157 4.26
Glaucous-Winged Gull 117 3.18
Western Gull 107 2.90
Western Grebe 92 2.50
Short-tailed Shearwater 68 1.85
Pelagic Cormorant 66 1.79
TOTAL 3034 Representing 82%
of 2007 total
See all for 2007

2006 View as graph

Species Count Percent
Common Murre 426 19.14
Rhinoceros Auklet 334 15.00
Northern Fulmar 232 10.42
Large Immature Gull 196 8.81
Cassin's Auklet 182 8.18
Western Grebe 172 7.73
Glaucous-Winged Gull 85 3.82
Western Gull 80 3.59
Brandt's Cormorant 72 3.23
Pelagic Cormorant 47 2.11
TOTAL 1826 Representing 82%
of 2006 total
See all for 2006

2005 View as graph

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
TOTAL 1938 Representing 82%
of 2005 total
See all for 2005

2004 View as graph

Species Count Percent
Common Murre 964 44.65
Northern Fulmar 332 15.38
Large Immature Gull 277 12.83
Glaucous-Winged Gull 88 4.08
Western Gull 65 3.01
Pelagic Cormorant 56 2.59
Sooty Shearwater 39 1.81
Cassin's Auklet 32 1.48
Rhinoceros Auklet 27 1.25
Surf Scoter 25 1.16
TOTAL 1905 Representing 88%
of 2004 total
See all for 2004

2003 View as graph

Species Count Percent
Northern Fulmar 1654 55.32
Common Murre 552 18.46
Large Immature Gull 222 7.42
Western Grebe 59 1.97
Glaucous-Winged Gull 55 1.84
Cassin's Auklet 47 1.57
Pelagic Cormorant 40 1.34
Brandt's Cormorant 31 1.04
Rhinoceros Auklet 31 1.04
Surf Scoter 27 0.90
TOTAL 2718 Representing 91%
of 2003 total
See all for 2003

2002 View as graph

Species Count Percent
Northern Fulmar 336 24.53
Common Murre 320 23.36
Red Phalarope 153 11.17
Large Immature Gull 150 10.95
Sooty Shearwater 43 3.14
Western Grebe 39 2.85
Glaucous-Winged Gull 33 2.41
Pelagic Cormorant 31 2.26
Brandt's Cormorant 27 1.97
California Gull 23 1.68
TOTAL 1155 Representing 84%
of 2002 total
See all for 2002

2001 View as graph

Species Count Percent
Northern Fulmar 144 21.95
Common Murre 142 21.65
Large Immature Gull 94 14.33
Sooty Shearwater 45 6.86
Glaucous-Winged Gull 22 3.35
Western Grebe 21 3.20
Black-Legged Kittiwake 19 2.90
Cassin's Auklet 15 2.29
Brandt's Cormorant 13 1.98
Western Gull 13 1.98
TOTAL 528 Representing 80%
of 2001 total
See all for 2001

2000 View as graph

Species Count Percent
Northern Fulmar 50 30.49
Common Murre 31 18.90
Glaucous-Winged Gull 15 9.15
Western Grebe 11 6.71
Large Immature Gull 10 6.10
Rhinoceros Auklet 7 4.27
Sooty Shearwater 5 3.05
Fork-tailed Storm-Petrel 4 2.44
Black-Footed Albatross 3 1.83
American Coot 3 1.83
TOTAL 139 Representing 85%
of 2000 total
See all for 2000

1999 View as graph

Species Count Percent
Common Murre 11 33.33
Rhinoceros Auklet 11 33.33
Northern Fulmar 6 18.18
Western Grebe 3 9.09
Common Loon 1 3.03
Surf Scoter 1 3.03
TOTAL 33 Representing 100%
of 1999 total
See all for 1999