The dates are when the species were added to the database, not when they were first detected or reported
Number of species added to database each time period
Days |
2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
---|---|---|---|---|---|---|
Dec 1 | 66 | 51 | 0 | 29 | 45 | 29 |
Dec 2 | 5 | 15 | 45 | 13 | 8 | 5 |
Dec 3 | 1 | 13 | 13 | 12 | 15 | 11 |
Dec 4 | 7 | 3 | 5 | 20 | 1 | 8 |
Dec 5 | 0 | 3 | 9 | 1 | 11 | 0 |
Dec 6 | 1 | 1 | 2 | 0 | 0 | 1 |
Dec 7 | 6 | 0 | 0 | 0 | 0 | 1 |
Dec 8 | 3 | 1 | 3 | 4 | 3 | 2 |
Dec 9 | 4 | 2 | 1 | 2 | 0 | 2 |
Dec 10 | 0 | 3 | 3 | 1 | 2 | 3 |
Dec 11 | 0 | 2 | 1 | 0 | 1 | 0 |
Dec 12 | 0 | 0 | 3 | 2 | 2 | 0 |
Dec 13 | 2 | 1 | 0 | 3 | 0 | 0 |
Dec 14 | 0 | 0 | 0 | 1 | 1 | 14 |
Dec 15-Dec 21 | 5 | 8 | 5 | 4 | 10 | 14 |
Dec 22-Dec 28 | 3 | 3 | 3 | 7 | 3 | 2 |
Dec 29-Jan 4 | 2 | 9 | 3 | 1 | 9 | 7 |
Jan 5-Jan 18 | 5 | 1 | 8 | 11 | 2 | 5 |
Jan 19-Feb 1 | 0 | 2 | 5 | 2 | 3 | 1 |
Feb 2-Feb 15 | 0 | 3 | 1 | 0 | 2 | 1 |
Feb 16-Feb 28/9 | 0 | 0 | 0 | 5 | 1 | 3 |
Cumulative number of species for each time period
Days |
2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
---|---|---|---|---|---|---|
Dec 1 | 66 | 51 | 0 | 29 | 45 | 29 |
Dec 2 | 71 | 66 | 45 | 42 | 53 | 34 |
Dec 3 | 72 | 79 | 58 | 54 | 68 | 45 |
Dec 4 | 79 | 82 | 63 | 74 | 69 | 53 |
Dec 5 | 79 | 85 | 72 | 75 | 80 | 53 |
Dec 6 | 80 | 86 | 74 | 75 | 80 | 54 |
Dec 7 | 86 | 86 | 74 | 75 | 80 | 55 |
Dec 8 | 89 | 87 | 77 | 79 | 83 | 57 |
Dec 9 | 93 | 89 | 78 | 81 | 83 | 59 |
Dec 10 | 93 | 92 | 81 | 82 | 85 | 62 |
Dec 11 | 93 | 94 | 82 | 82 | 86 | 62 |
Dec 12 | 93 | 94 | 85 | 84 | 88 | 62 |
Dec 13 | 95 | 95 | 85 | 87 | 88 | 62 |
Dec 14 | 95 | 95 | 85 | 88 | 89 | 76 |
Dec 15-Dec 21 | 100 | 103 | 90 | 92 | 99 | 90 |
Dec 22-Dec 28 | 103 | 106 | 93 | 99 | 102 | 92 |
Dec 29-Jan 4 | 105 | 115 | 96 | 100 | 111 | 99 |
Jan 5-Jan 18 | 110 | 116 | 104 | 111 | 113 | 104 |
Jan 19-Feb 1 | 110 | 118 | 109 | 113 | 116 | 105 |
Feb 2-Feb 15 | 110 | 121 | 110 | 113 | 118 | 106 |
Feb 16-Feb 28/9 | 110 | 121 | 110 | 118 | 119 | 109 |
Earliest and latest first addition of each species since Dec 2019 EOS means species was added after end of season
Species |
Occurrences |
Earliest date |
Latest date |
---|---|---|---|
Snow Goose | 4 | Dec 3 | Jan 28 |
Greater White-fronted Goose | 3 | Dec 2 | Dec 21 |
Cackling Goose | 6 | Dec 1 | Dec 8 |
Canada Goose | 6 | Dec 1 | Dec 2 |
Trumpeter Swan | 6 | Dec 1 | Dec 2 |
Tundra Swan | 6 | Dec 1 | Dec 9 |
Wood Duck | 6 | Dec 3 | Dec 29 |
Blue-winged Teal | 1 | Dec 3 | Dec 3 |
Northern Shoveler | 4 | Dec 7 | Feb 11 |
Gadwall | 6 | Dec 1 | Dec 23 |
American Wigeon | 6 | Dec 1 | Dec 21 |
Mallard | 6 | Dec 1 | Dec 2 |
Northern Pintail | 6 | Dec 3 | Dec 22 |
Green-winged Teal | 6 | Dec 1 | Feb 23 |
Canvasback | 5 | Dec 1 | Dec 4 |
Redhead | 6 | Dec 1 | Dec 3 |
Ring-necked Duck | 6 | Dec 1 | Dec 3 |
Greater Scaup | 6 | Dec 3 | Feb 19 |
Lesser Scaup | 6 | Dec 1 | Dec 4 |
Harlequin Duck | 6 | Dec 1 | Dec 8 |
White-winged Scoter | 1 | Dec 4 | Dec 4 |
Long-tailed Duck | 2 | Dec 1 | Dec 4 |
Bufflehead | 6 | Dec 1 | Dec 2 |
Common Goldeneye | 6 | Dec 1 | Dec 2 |
Barrow's Goldeneye | 6 | Dec 1 | Dec 3 |
Hooded Merganser | 6 | Dec 1 | Dec 3 |
Common Merganser | 6 | Dec 1 | Dec 3 |
Red-breasted Merganser | 4 | Dec 1 | Jan 27 |
Ruddy Duck | 4 | Dec 1 | Jan 24 |
Wild Turkey | 6 | Dec 1 | Jan 11 |
Ruffed Grouse | 6 | Dec 1 | Dec 4 |
Sharp-tailed Grouse | 6 | Dec 1 | Dec 29 |
White-tailed Ptarmigan | 1 | Dec 30 | Dec 30 |
Spruce Grouse | 6 | Dec 5 | Feb 20 |
Grey Partridge | 6 | Dec 1 | Dec 10 |
Ring-necked Pheasant | 6 | Dec 1 | Dec 14 |
Rock Pigeon | 6 | Dec 1 | Dec 2 |
Eurasian Collared-Dove | 6 | Dec 1 | Dec 5 |
White-winged Dove | 1 | Jan 11 | Jan 11 |
Mourning Dove | 2 | Dec 10 | Dec 16 |
Anna's Hummingbird | 1 | Dec 2 | Dec 2 |
American Coot | 4 | Dec 1 | Dec 3 |
Killdeer | 6 | Dec 1 | Dec 12 |
Wilson's Snipe | 6 | Dec 3 | Jan 2 |
Ring-billed Gull | 2 | Dec 2 | Dec 8 |
California Gull | 2 | Dec 31 | EOS |
Pied-billed Grebe | 1 | Dec 1 | Dec 1 |
Horned Grebe | 1 | Dec 4 | Dec 4 |
Red-necked Grebe | 1 | Dec 5 | Dec 5 |
Eared Grebe | 1 | Dec 7 | Dec 7 |
Western Grebe | 1 | Dec 9 | Dec 9 |
Double-crested Cormorant | 1 | Dec 2 | Dec 2 |
Great Blue Heron | 2 | Dec 13 | Jan 11 |
American White Pelican | 3 | Dec 1 | Dec 8 |
Golden Eagle | 6 | Dec 1 | Dec 14 |
Sharp-shinned Hawk | 6 | Dec 1 | Dec 23 |
Cooper's Hawk | 6 | Dec 2 | Jan 14 |
American Goshawk | 6 | Dec 1 | Dec 14 |
Northern Harrier | 6 | Dec 3 | Jan 14 |
Bald Eagle | 6 | Dec 1 | Dec 2 |
Red-tailed Hawk | 6 | Dec 3 | Dec 14 |
Rough-legged Hawk | 6 | Dec 1 | Dec 14 |
American Barn Owl | 1 | Jan 14 | Jan 14 |
Snowy Owl | 6 | Dec 1 | Dec 14 |
Great Horned Owl | 6 | Dec 1 | Dec 15 |
Northern Hawk Owl | 6 | Dec 10 | Jan 14 |
Northern Pygmy-Owl | 6 | Dec 2 | Jan 14 |
Barred Owl | 5 | Dec 18 | Feb 20 |
Great Grey Owl | 6 | Dec 1 | Jan 14 |
Long-eared Owl | 3 | Dec 1 | Jan 1 |
Short-eared Owl | 6 | Dec 1 | Jan 2 |
Boreal Owl | 3 | Dec 7 | Dec 29 |
Northern Saw-whet Owl | 6 | Dec 1 | Dec 10 |
Belted Kingfisher | 6 | Dec 1 | Dec 5 |
Yellow-bellied Sapsucker | 1 | Jan 28 | Jan 28 |
Red-bellied Woodpecker | 1 | Jan 19 | Jan 19 |
American Three-toed Woodpecker | 6 | Dec 1 | Dec 14 |
Black-backed Woodpecker | 6 | Dec 1 | Jan 6 |
Downy Woodpecker | 6 | Dec 1 | Dec 2 |
Hairy Woodpecker | 6 | Dec 1 | Dec 2 |
Pileated Woodpecker | 6 | Dec 1 | Dec 4 |
Northern Flicker | 6 | Dec 1 | Dec 2 |
American Kestrel | 7 | Dec 2 | EOS |
Merlin | 6 | Dec 1 | Dec 12 |
Gyrfalcon | 6 | Dec 3 | Dec 30 |
Prairie Falcon | 6 | Dec 1 | Dec 5 |
Northern Shrike | 6 | Dec 1 | Dec 2 |
Canada Jay | 6 | Dec 1 | Dec 4 |
Steller's Jay | 5 | Dec 4 | Jan 10 |
Blue Jay | 6 | Dec 1 | Dec 2 |
Black-billed Magpie | 6 | Dec 1 | Dec 14 |
Clark's Nutcracker | 6 | Dec 7 | Jan 23 |
American Crow | 6 | Dec 1 | Dec 4 |
Common Raven | 6 | Dec 1 | Dec 2 |
Black-capped Chickadee | 6 | Dec 1 | Dec 2 |
Mountain Chickadee | 6 | Dec 1 | Dec 4 |
Boreal Chickadee | 6 | Dec 1 | Dec 4 |
Horned Lark | 6 | Dec 1 | Dec 24 |
Ruby-crowned Kinglet | 1 | Dec 19 | Dec 19 |
Golden-crowned Kinglet | 6 | Dec 1 | Dec 15 |
White-breasted Nuthatch | 6 | Dec 1 | Dec 2 |
Red-breasted Nuthatch | 6 | Dec 1 | Dec 2 |
Brown Creeper | 6 | Dec 1 | Dec 5 |
Winter Wren | 1 | Dec 3 | Dec 3 |
Pacific/Winter Wren | 2 | Jan 13 | Jan 26 |
American Dipper | 6 | Dec 1 | Dec 8 |
European Starling | 6 | Dec 1 | Dec 3 |
Grey Catbird | 2 | Dec 2 | Dec 19 |
Northern Mockingbird | 1 | Feb 8 | Feb 8 |
Mountain Bluebird | 1 | Dec 19 | Dec 19 |
Townsend's Solitaire | 6 | Dec 1 | Dec 2 |
Varied Thrush | 5 | Dec 3 | Dec 19 |
Swainson's Thrush | 1 | Dec 20 | Dec 20 |
American Robin | 6 | Dec 1 | Dec 16 |
Bohemian Waxwing | 6 | Dec 1 | Dec 2 |
Cedar Waxwing | 6 | Dec 4 | Dec 28 |
House Sparrow | 6 | Dec 1 | Dec 2 |
American Pipit | 1 | Feb 9 | Feb 9 |
Evening Grosbeak | 6 | Dec 1 | Dec 5 |
Pine Grosbeak | 6 | Dec 1 | Dec 4 |
Grey-crowned Rosy-Finch | 4 | Dec 6 | Feb 7 |
House Finch | 6 | Dec 1 | Dec 2 |
Purple Finch | 5 | Dec 9 | Feb 11 |
Cassin's Finch | 1 | Dec 19 | Dec 19 |
Redpoll | 1 | Dec 1 | Dec 1 |
Redpoll (Common) | 5 | Dec 1 | Dec 15 |
Redpoll (Hoary) | 3 | Dec 3 | Dec 16 |
Red Crossbill | 6 | Dec 1 | Jan 16 |
White-winged Crossbill | 6 | Dec 1 | Dec 18 |
Pine Siskin | 6 | Dec 1 | Dec 13 |
American Goldfinch | 5 | Dec 2 | Dec 16 |
Lapland Longspur | 4 | Dec 6 | Feb 24 |
Snow Bunting | 6 | Dec 1 | Dec 14 |
American Tree Sparrow | 6 | Dec 1 | Dec 28 |
Fox Sparrow | 2 | Jan 3 | Jan 14 |
Dark-eyed Junco | 6 | Dec 1 | Dec 5 |
White-crowned Sparrow | 2 | Dec 5 | Jan 14 |
Harris's Sparrow | 4 | Jan 14 | EOS |
White-throated Sparrow | 6 | Dec 2 | Dec 23 |
Savannah Sparrow | 1 | Jan 21 | Jan 21 |
Song Sparrow | 6 | Dec 1 | Feb 7 |
Spotted Towhee | 1 | Feb 20 | Feb 20 |
Yellow-headed Blackbird | 1 | Dec 21 | Dec 21 |
Western Meadowlark | 4 | Dec 8 | Dec 25 |
Red-winged Blackbird | 5 | Dec 3 | EOS |
Rusty Blackbird | 5 | Dec 3 | Jan 4 |
Brewer's Blackbird | 3 | Dec 1 | Jan 4 |
Common Grackle | 6 | Dec 5 | Dec 31 |
Cape May Warbler | 1 | Jan 27 | Jan 27 |
Palm Warbler | 1 | Jan 1 | Jan 1 |
Yellow-rumped Warbler | 5 | Dec 9 | Jan 12 |