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 5286 24.89
Northern Fulmar 4584 21.58
Large Immature Gull 2027 9.54
Unknown 1870 8.81
Rhinoceros Auklet 797 3.75
Glaucous-Winged Gull 654 3.08
Western Grebe 618 2.91
Brandt's Cormorant 598 2.82
Western Gull 554 2.61
Cassin's Auklet 440 2.07
TOTAL 17428 Representing 82%
of carcasses found by COASST
See all species

2009 View as graph

Species Count Percent
Northern Fulmar 91 12.13
Large Immature Gull 87 11.60
Unknown 63 8.40
Common Murre 60 8.00
Western Grebe 52 6.93
Western Gull 51 6.80
Brandt's Cormorant 49 6.53
Sooty Shearwater 30 4.00
Brown Pelican 27 3.60
Glaucous-Winged Gull 26 3.47
TOTAL 536 Representing 71%
of 2009 total
See all for 2009

2008 View as graph

Species Count Percent
Common Murre 892 26.53
Northern Fulmar 737 21.92
Unknown 343 10.20
Large Immature Gull 238 7.08
Glaucous-Winged Gull 146 4.34
Western Gull 141 4.19
Brandt's Cormorant 94 2.80
Western Grebe 90 2.68
Sooty Shearwater 52 1.55
Brown Pelican 48 1.43
TOTAL 2781 Representing 83%
of 2008 total
See all for 2008

2007 View as graph

Species Count Percent
Common Murre 1052 25.04
Northern Fulmar 729 17.35
Unknown 514 12.23
Large Immature Gull 380 9.04
Rhinoceros Auklet 267 6.35
Brandt's Cormorant 157 3.74
Glaucous-Winged Gull 118 2.81
Western Gull 107 2.55
Western Grebe 95 2.26
Short-tailed Shearwater 68 1.62
TOTAL 3487 Representing 83%
of 2007 total
See all for 2007

2006 View as graph

Species Count Percent
Common Murre 426 17.30
Rhinoceros Auklet 334 13.57
Unknown 236 9.59
Northern Fulmar 232 9.42
Large Immature Gull 196 7.96
Cassin's Auklet 182 7.39
Western Grebe 172 6.99
Glaucous-Winged Gull 85 3.45
Western Gull 80 3.25
Brandt's Cormorant 72 2.92
TOTAL 2015 Representing 82%
of 2006 total
See all for 2006

2005 View as graph

Species Count Percent
Common Murre 836 32.68
Large Immature Gull 373 14.58
Northern Fulmar 273 10.67
Unknown 183 7.15
Brandt's Cormorant 129 5.04
Glaucous-Winged Gull 66 2.58
Western Grebe 62 2.42
Cassin's Auklet 62 2.42
Pelagic Cormorant 48 1.88
Western Gull 48 1.88
TOTAL 2080 Representing 81%
of 2005 total
See all for 2005

2004 View as graph

Species Count Percent
Common Murre 964 41.71
Northern Fulmar 332 14.37
Large Immature Gull 277 11.99
Unknown 152 6.58
Glaucous-Winged Gull 88 3.81
Western Gull 65 2.81
Pelagic Cormorant 56 2.42
Sooty Shearwater 39 1.69
Cassin's Auklet 32 1.38
Rhinoceros Auklet 27 1.17
TOTAL 2032 Representing 88%
of 2004 total
See all for 2004

2003 View as graph

Species Count Percent
Northern Fulmar 1654 52.81
Common Murre 552 17.62
Large Immature Gull 222 7.09
Unknown 142 4.53
Western Grebe 59 1.88
Glaucous-Winged Gull 55 1.76
Cassin's Auklet 47 1.50
Pelagic Cormorant 40 1.28
Rhinoceros Auklet 31 0.99
Brandt's Cormorant 31 0.99
TOTAL 2833 Representing 90%
of 2003 total
See all for 2003

2002 View as graph

Species Count Percent
Northern Fulmar 336 22.73
Common Murre 320 21.65
Red Phalarope 153 10.35
Large Immature Gull 150 10.15
Unknown 108 7.31
Sooty Shearwater 43 2.91
Western Grebe 39 2.64
Glaucous-Winged Gull 33 2.23
Pelagic Cormorant 31 2.10
Brandt's Cormorant 27 1.83
TOTAL 1240 Representing 84%
of 2002 total
See all for 2002

2001 View as graph

Species Count Percent
Northern Fulmar 144 19.46
Common Murre 142 19.19
Large Immature Gull 94 12.70
Unknown 84 11.35
Sooty Shearwater 45 6.08
Glaucous-Winged Gull 22 2.97
Western Grebe 21 2.84
Black-Legged Kittiwake 19 2.57
Cassin's Auklet 15 2.03
Brandt's Cormorant 13 1.76
TOTAL 599 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