May Species Count 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Greater White-fronted Goose Snow Goose Ross's Goose Brant Cackling Goose Canada Goose 322 251 466 706 87 398 478 1246 907 599 Goose Species Trumpeter Swan 7 1 Tundra Swan 20 Swan species Wood Duck 2 Gadwall 25 18 49 51 19 28 222 240 132 152 Eurasian Wigeon American Wigeon 6 1 2 30 9 13 84 68 30 33 American Black Duck Mallard 135 178 251 576 90 235 434 789 341 446 Blue-winged Teal 233 54 65 129 44 96 444 211 199 240 Cinnamon Teal 27 1 6 26 7 4 9 20 4 16 Northern Shoveler 39 33 44 111 38 82 95 224 87 273 Northern Pintail 26 5 12 27 17 26 42 25 40 Green-winged Teal 8 18 15 30 56 25 37 52 34 43 Canvasback 54 15 20 28 5 43 34 33 32 69 Redhead 121 52 39 67 11 105 68 180 85 160 Ring-necked Duck 24 18 32 24 4 20 8 18 37 89 Greater Scaup 1 Lesser Scaup 157 229 194 126 14 124 128 342 188 296 Harlequin Duck Surf Scoter White-winged Scoter 2 40 32 7 3 Black Scoter Long-tailed Duck Bufflehead 66 51 66 104 24 60 81 146 88 159 Common Goldeneye 80 14 20 31 19 38 57 56 91 80 Barrow's Goldeneye 48 48 10 8 Goldeneye Species Hooded Merganser 1 10 Common Merganser 7 14 7 6 9 2 5 5 15 Red-breasted Merganser Ruddy Duck 66 77 119 167 15 146 79 132 79 202 Duck species Gray Partridge 4 2 5 6 11 Ring-necked Pheasant 1 5 4 1 Ruffed Grouse 2 6 2 1 13 1 4 9 3 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Greater Sage-Grouse Spruce Grouse Willow Ptarmigan White-tailed Ptarmigan Dusky Grouse Sharp-tailed Grouse 2 Wild Turkey Red-throated Loon Pacific Loon Common Loon 17 43 16 5 1 18 2 4 8 4 Yellow-billed Loon Pied-billed Grebe 13 4 9 8 6 1 15 2 5 Horned Grebe 267 39 56 116 7 37 5 203 8 10 Red-necked Grebe 390 140 49 37 19 37 16 29 13 41 Eared Grebe 182 88 409 325 2 58 68 88 56 488 Western Grebe 17 2 6 8 6 Clark's Grebe American White Pelican 3 67 20 9 8 82 Double-crested Cormorant 5 1 3 20 1 American Bittern 1 Great Blue Heron 56 52 9 11 4 5 6 3 9 3 Great Egret Snowy Egret Black-crowned Night-Heron White-faced Ibis Glossy Ibis Turkey Vulture 2 4 11 6 Osprey 1 2 7 3 1 3 6 Bald Eagle 2 5 9 2 2 1 Northern Harrier 3 2 13 7 2 3 5 3 3 Sharp-shinned Hawk 2 2 2 1 1 4 Cooper's Hawk 2 1 1 3 1 Northern Goshawk 2 1 3 Accipiter species Hawk Species Broad-winged Hawk Swainson's Hawk 4 9 21 4 3 7 3 17 8 17 Red-tailed Hawk 41 31 49 60 24 53 58 115 72 97 Ferruginous Hawk Rough-legged Hawk 2 2 1 Buteo species Golden Eagle 2 2 Eagle Species 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Yellow Rail Virginia Rail Sora 24 9 12 1 2 8 9 11 14 37 American Coot 382 148 360 649 33 480 89 347 164 363 Sandhill Crane 2 1 5 2 7 Whooping Crane Black-bellied Plover 4 American Golden-Plover Semipalmated Plover 1 2 2 Piping Plover Killdeer 31 33 6 27 8 21 41 33 45 25 Mountain Plover Black-necked Stilt American Avocet 6 12 2 2 30 18 10 5 Spotted Sandpiper 19 12 12 4 3 6 14 9 9 18 Solitary Sandpiper 3 5 2 3 4 5 1 Greater Yellowlegs 3 3 Willet 4 2 2 5 16 10 1 Lesser Yellowlegs 7 10 4 7 6 1 5 Upland Sandpiper Whimbrel Long-billed Curlew Hudsonian Godwit Marbled Godwit 1 1 1 3 1 5 7 4 Ruddy Turnstone Red Knot Sanderling Semipalmated Sandpiper 34 9 52 17 Western Sandpiper Least Sandpiper 30 11 5 1 White-rumped Sandpiper Baird's Sandpiper Pectoral Sandpiper 70 4 2 Peeps species Dunlin Stilt Sandpiper Buff-breasted Sandpiper Short-billed Dowitcher 2 5 Long-billed Dowitcher 35 4 dowitcher species Wilson's Snipe 8 17 25 9 14 16 9 27 16 36 Wilson's Phalarope 13 26 17 5 132 79 4 48 Red-necked Phalarope 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Red Phalarope Phalarope species Parasitic Jaeger Jaeger species Gull Species Sabine's Gull Bonaparte's Gull 9 6 54 5 70 25 1 15 Franklin's Gull 411 21 110 57 94 11 84 49 262 Mew Gull Ring-billed Gull 1 45 119 40 21 64 17 40 320 California Gull 14 27 38 42 60 5 4 2 Herring Gull Thayer's Gull Glaucous Gull Caspian Tern Black Tern 421 314 249 4 77 1018 479 118 217 Common Tern 9 42 36 4 1 1 Arctic Tern Forster's Tern Tern species Rock Pigeon 32 19 52 40 68 42 60 147 121 Band-tailed Pigeon Eurasian Collared-Dove 1 Mourning Dove 9 2 1 18 14 9 23 20 Black-billed Cuckoo Great Horned Owl 11 1 6 4 14 3 8 5 14 Snowy Owl Northern Hawk Owl 1 Northern Pygmy-Owl 1 Burrowing Owl Barred Owl Great Gray Owl 1 6 1 1 Long-eared Owl Short-eared Owl 1 Boreal Owl Northern Saw-whet Owl 2 2 1 1 5 owl species Common Nighthawk 2 1 Common Poorwill Black Swift Vaux's Swift Swift species Ruby-throated Hummingbird 7 8 23 3 26 15 6 15 13 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Rufous Hummingbird 1 Calliope Hummingbird Black-chinned Hummingbird Hummingbird species Belted Kingfisher 1 Lewis's Woodpecker Red-headed Woodpecker Yellow-bellied Sapsucker 8 11 11 4 13 17 10 9 17 Red-naped Sapsucker Sapsucker species Downy Woodpecker 12 11 21 8 32 16 15 7 13 Hairy Woodpecker 13 12 18 10 18 12 8 8 10 American Three-toed Woodpecker Black-backed Woodpecker Northern Flicker 7 11 11 4 16 15 21 17 18 Pileated Woodpecker 5 2 3 3 5 3 2 1 1 Woodpecker species American Kestrel 9 6 2 5 4 8 4 5 7 4 Merlin 1 5 3 2 1 3 3 2 Gyrfalcon Peregrine Falcon 5 Prairie Falcon 2 2 3 Falcon Species Olive-sided Flycatcher 1 Western Wood-Pewee 10 8 3 2 1 4 3 4 Yellow-bellied Flycatcher Alder Flycatcher 6 1 1 1 Willow Flycatcher 1 Least Flycatcher 59 55 37 14 50 13 85 34 76 Empidonax species Hammond's Flycatcher Dusky Flycatcher Pacific-slope Flycatcher Eastern Phoebe 9 2 3 3 4 3 3 12 11 Say's Phoebe 1 Great Crested Flycatcher Western Kingbird 1 1 Eastern Kingbird 5 7 8 5 9 25 9 6 Loggerhead Shrike 1 1 Northern Shrike Cassin's Vireo Blue-headed Vireo 3 1 5 1 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Warbling Vireo 15 12 1 1 6 5 6 4 11 Philadelphia Vireo 4 8 1 Red-eyed Vireo 13 9 4 1 1 14 9 1 Vireo species Gray Jay 7 4 4 5 2 Steller’s Jay Blue Jay 7 12 17 8 47 27 18 13 18 Clark's Nutcracker Black-billed Magpie 60 51 89 45 158 125 288 154 149 American Crow 68 72 147 44 203 229 339 197 167 Common Raven 7 18 25 24 38 26 26 43 45 Horned Lark 5 5 3 Purple Martin 42 32 60 9 33 16 106 5 81 Tree Swallow 279 212 381 141 11 387 395 411 388 Violet-green Swallow Northern Rough-winged 4 2 Swallow Bank Swallow 43 7 53 17 58 3 58 Cliff Swallow 269 2 165 27 228 214 389 358 390 Barn Swallow 174 222 48 30 153 92 97 42 26 Swallow species Black-capped Chickadee 70 77 99 31 138 75 100 51 52 Mountain Chickadee Boreal Chickadee 4 4 3 6 2 2 5 2 chickadee species Red-breasted Nuthatch 6 6 11 7 13 16 5 6 7 White-breasted Nuthatch 17 6 19 12 15 9 14 5 10 Nuthatch species 2 Brown Creeper Rock Wren House Wren 57 27 46 17 59 30 62 37 82 Pacific Wren Winter Wren Sedge Wren Marsh Wren 5 17 8 4 7 1 11 Wren Species American Dipper Golden-crowned Kinglet Ruby-crowned Kinglet 1 31 1 5 6 2 12 9 Eastern Bluebird Western Bluebird Mountain Bluebird 104 81 42 32 29 68 73 58 126 Townsend's Solitaire 1 Veery 4 1 3 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Gray-cheeked Thrush Swainson's Thrush 1 1 Hermit Thrush 2 2 1 2 Wood Thrush American Robin 140 122 95 49 157 141 234 233 204 Varied Thrush Thrush species Gray Catbird 1 2 4 1 1 5 4 15 10 Northern Mockingbird Sage Thrasher Brown Thrasher European Starling 74 54 175 75 138 223 160 270 242 American Pipit Sprague's Pipit Bohemian Waxwing Cedar Waxwing 7 45 2 11 35 15 Lapland Longspur Chestnut-collared Longspur Smith's Longspur McCown's Longspur Snow Bunting Ovenbird 2 1 Northern Waterthrush Black-and-white Warbler 1 1 cw Tennessee Warbler 11 10 3 1 2 6 Orange-crowned Warbler Nashville Warbler Connecticut Warbler 1 MacGillivray's Warbler Mourning Warbler Common Yellowthroat 2 10 4 1 6 7 5 American Redstart 4 Cape May Warbler Magnolia Warbler Bay-breasted Warbler Blackburnian Warbler Yellow Warbler 49 17 Chestnut-sided Warbler Blackpoll Warbler 2 Black-throated Blue Warbler Palm Warbler Yellow-rumped Warbler 10 2 11 6 3 16 7 8 Townsend's Warbler 21 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Black-throated Green Warbler Canada Warbler Wilson's Warbler 3 1 Yellow-breasted Chat Warbler species Spotted Towhee 2 3 11 9 1 Black-throated Sparrow American Tree Sparrow Chipping Sparrow 34 34 60 26 53 35 36 32 54 Clay-colored Sparrow 59 37 79 34 56 43 161 82 152 Brewer's Sparrow 2 1 Vesper Sparrow 6 2 4 18 9 17 22 40 36 Lark Sparrow 4 5 Lark Bunting Savannah Sparrow 35 12 19 13 25 41 91 79 58 Grasshopper Sparrow Baird's Sparrow 1 cw LeConte's Sparrow 15 3 2 1 Nelson's Sparrow 2 Fox Sparrow Song Sparrow 25 25 14 25 20 57 29 33 Lincoln's Sparrow 1 1 9 1 3 Swamp Sparrow 1 White-throated Sparrow 31 29 38 16 36 21 38 30 47 Harris' Sparrow 1 White-crowned Sparrow 2 1 13 12 26 21 12 2 18 Golden-crowned Sparrow Dark-eyed Junco 30 21 12 5 9 7 7 3 4 Sparrow species Scarlet Tanager Western Tanager 3 3 1 1 1 Northern Cardinal Rose-breasted Grosbeak 8 6 9 9 12 6 3 10 7 Black-headed Grosbeak Lazuli Bunting Indigo Bunting Dickcissel (uncoroborated) Bobolink 1 1 1CW Red-winged Blackbird 294 321 316 65 483 334 623 352 342 Western Meadowlark 1 1 3 5 9 13 26 90 24 Yellow-headed Blackbird 209 123 91 2 167 27 187 82 140 Rusty Blackbird 1992 1994 1997 2001 2002 2003 2004 2005 2006 2007 Brewer's Blackbird 68 67 100 3 66 129 217 357 118 Common Grackle 2 3 14 3 14 8 1 Brown-headed Cowbird 39 69 94 30 91 71 101 66 67 Bullock's Oriole Baltimore Oriole 50 18 39 8 26 17 45 15 29 Blackbird species Gray-crowned Rosy-Finch 26 Pine Grosbeak Purple Finch 10 12 16 17 20 12 6 7 15 Cassin's Finch House Finch 0 0 6 1 5 9 15 Red Crossbill White-winged Crossbill Common Redpoll Hoary Redpoll Pine Siskin 45 5 10 43 71 19 26 1 26 American Goldfinch 96 106 1 156 24 107 106 92 53 133 Evening Grosbeak 5 3 34 1 14 2 1 9 Grosbeak species House Sparrow 72 48 4 165 42 217 172 181 302 69 TOTAL 22566 20486 18450 23436 17954 21996 23102 26139 23128 25001 total # of observers 38 30 26 46 48 28 33 36 37 total species 124 121 32 131 111 128 126 119 135 134 Total # of CW species 1 2 Total # of CW individuals 1 2