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 | 39 | 0 | 0 | 17 | 39 | 30 |
Dec 2 | 1 | 21 | 29 | 16 | 1 | 5 |
Dec 3 | 6 | 38 | 5 | 7 | 12 | 0 |
Dec 4 | 3 | 1 | 17 | 15 | 1 | 2 |
Dec 5 | 3 | 10 | 9 | 3 | 4 | 0 |
Dec 6 | 5 | 4 | 0 | 1 | 2 | 2 |
Dec 7 | 4 | 2 | 0 | 2 | 4 | 10 |
Dec 8 | 6 | 1 | 0 | 2 | 0 | 0 |
Dec 9 | 3 | 0 | 1 | 0 | 0 | 0 |
Dec 10 | 2 | 2 | 0 | 1 | 0 | 0 |
Dec 11 | 0 | 1 | 1 | 0 | 5 | 5 |
Dec 12 | 0 | 1 | 1 | 1 | 1 | 0 |
Dec 13 | 3 | 2 | 0 | 1 | 0 | 3 |
Dec 14 | 2 | 1 | 0 | 0 | 1 | 3 |
Dec 15-Dec 21 | 4 | 8 | 6 | 2 | 3 | 7 |
Dec 22-Dec 28 | 5 | 4 | 4 | 2 | 6 | 3 |
Dec 29-Jan 4 | 3 | 4 | 3 | 4 | 3 | 1 |
Jan 5-Jan 18 | 2 | 1 | 3 | 4 | 5 | 8 |
Jan 19-Feb 1 | 1 | 3 | 2 | 5 | 3 | 2 |
Feb 2-Feb 15 | 2 | 0 | 0 | 0 | 1 | 6 |
Feb 16-Feb 28/9 | 0 | 3 | 1 | 3 | 4 | 1 |
Cumulative number of species for each time period
Days |
2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
---|---|---|---|---|---|---|
Dec 1 | 39 | 0 | 0 | 17 | 39 | 30 |
Dec 2 | 40 | 21 | 29 | 33 | 40 | 35 |
Dec 3 | 46 | 59 | 34 | 40 | 52 | 35 |
Dec 4 | 49 | 60 | 51 | 55 | 53 | 37 |
Dec 5 | 52 | 70 | 60 | 58 | 57 | 37 |
Dec 6 | 57 | 74 | 60 | 59 | 59 | 39 |
Dec 7 | 61 | 76 | 60 | 61 | 63 | 49 |
Dec 8 | 67 | 77 | 60 | 63 | 63 | 49 |
Dec 9 | 70 | 77 | 61 | 63 | 63 | 49 |
Dec 10 | 72 | 79 | 61 | 64 | 63 | 49 |
Dec 11 | 72 | 80 | 62 | 64 | 68 | 54 |
Dec 12 | 72 | 81 | 63 | 65 | 69 | 54 |
Dec 13 | 75 | 83 | 63 | 66 | 69 | 57 |
Dec 14 | 77 | 84 | 63 | 66 | 70 | 60 |
Dec 15-Dec 21 | 81 | 92 | 69 | 68 | 73 | 67 |
Dec 22-Dec 28 | 86 | 96 | 73 | 70 | 79 | 70 |
Dec 29-Jan 4 | 89 | 100 | 76 | 74 | 82 | 71 |
Jan 5-Jan 18 | 91 | 101 | 79 | 78 | 87 | 79 |
Jan 19-Feb 1 | 92 | 104 | 81 | 83 | 90 | 81 |
Feb 2-Feb 15 | 94 | 104 | 81 | 83 | 91 | 87 |
Feb 16-Feb 28/9 | 94 | 107 | 82 | 86 | 95 | 88 |
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 |
---|---|---|---|
Cackling Goose | 3 | Dec 5 | Feb 2 |
Canada Goose | 6 | Dec 1 | Dec 4 |
Trumpeter Swan | 6 | Dec 3 | Dec 17 |
Tundra Swan | 6 | Dec 1 | Dec 8 |
Wood Duck | 1 | Dec 5 | Dec 5 |
Northern Shoveler | 2 | Dec 3 | Jan 19 |
Gadwall | 6 | Dec 3 | Jan 16 |
American Wigeon | 4 | Dec 2 | Jan 20 |
Mallard | 6 | Dec 1 | Dec 2 |
Northern Pintail | 4 | Dec 1 | Jan 26 |
Green-winged Teal | 2 | Dec 4 | Dec 12 |
Canvasback | 6 | Dec 3 | Jan 2 |
Redhead | 6 | Dec 3 | Dec 11 |
Ring-necked Duck | 6 | Dec 3 | Dec 11 |
Greater Scaup | 6 | Dec 3 | Feb 10 |
Lesser Scaup | 6 | Dec 1 | Dec 23 |
White-winged Scoter | 1 | Dec 15 | Dec 15 |
Long-tailed Duck | 3 | Dec 4 | Jan 17 |
Bufflehead | 6 | Dec 1 | Dec 7 |
Common Goldeneye | 6 | Dec 1 | Dec 4 |
Barrow's Goldeneye | 5 | Dec 6 | EOS |
Hooded Merganser | 6 | Dec 3 | Jan 10 |
Common Merganser | 6 | Dec 1 | Dec 7 |
Red-breasted Merganser | 6 | Dec 3 | Feb 10 |
Ruddy Duck | 6 | Dec 3 | Jan 26 |
Ruffed Grouse | 6 | Dec 1 | Dec 8 |
Sharp-tailed Grouse | 2 | Dec 14 | Dec 31 |
Grey Partridge | 6 | Dec 1 | Dec 18 |
Ring-necked Pheasant | 5 | Dec 1 | Feb 22 |
Rock Pigeon | 6 | Dec 1 | Dec 2 |
Eurasian Collared-Dove | 6 | Dec 2 | Dec 18 |
Mourning Dove | 1 | Dec 10 | Dec 10 |
American Coot | 6 | Dec 3 | Jan 2 |
Glaucous Gull | 1 | Jan 3 | Jan 3 |
Pied-billed Grebe | 3 | Dec 3 | Jan 6 |
Horned Grebe | 3 | Dec 3 | Dec 28 |
Red-necked Grebe | 6 | Dec 3 | Jan 22 |
Eared Grebe | 3 | Dec 4 | Jan 16 |
Western Grebe | 5 | Dec 3 | Dec 17 |
Pacific Loon | 1 | Dec 3 | Dec 3 |
Yellow-billed Loon | 1 | Dec 7 | Dec 7 |
Double-crested Cormorant | 2 | Dec 4 | Dec 5 |
Golden Eagle | 5 | Dec 3 | Jan 15 |
Sharp-shinned Hawk | 6 | Dec 1 | Dec 13 |
Cooper's Hawk | 6 | Dec 6 | Feb 22 |
American Goshawk | 6 | Dec 2 | Dec 14 |
Northern Harrier | 2 | Dec 13 | Dec 17 |
Bald Eagle | 6 | Dec 1 | Dec 2 |
Red-tailed Hawk | 5 | Dec 2 | Feb 2 |
Rough-legged Hawk | 6 | Dec 1 | Dec 24 |
Snowy Owl | 6 | Dec 1 | Dec 8 |
Great Horned Owl | 6 | Dec 1 | Dec 3 |
Northern Hawk Owl | 6 | Dec 1 | Feb 19 |
Northern Pygmy-Owl | 1 | Dec 3 | Dec 3 |
Barred Owl | 6 | Dec 1 | Jan 5 |
Great Grey Owl | 6 | Dec 1 | Jan 2 |
Short-eared Owl | 4 | Dec 1 | Jan 1 |
Boreal Owl | 2 | Dec 14 | Feb 26 |
Northern Saw-whet Owl | 6 | Dec 4 | Dec 27 |
Belted Kingfisher | 2 | Dec 25 | Dec 28 |
American Three-toed Woodpecker | 5 | Dec 6 | Feb 23 |
Black-backed Woodpecker | 6 | Dec 1 | Dec 4 |
Downy Woodpecker | 6 | Dec 1 | Dec 2 |
Hairy Woodpecker | 6 | Dec 1 | Dec 2 |
Pileated Woodpecker | 6 | Dec 1 | Dec 2 |
Northern Flicker | 6 | Dec 1 | Dec 2 |
American Kestrel | 1 | Dec 3 | Dec 3 |
Merlin | 6 | Dec 1 | Dec 7 |
Gyrfalcon | 4 | Dec 7 | Jan 23 |
Peregrine Falcon | 2 | Dec 5 | Dec 11 |
Prairie Falcon | 4 | Dec 7 | Dec 28 |
Northern Shrike | 6 | Dec 1 | Dec 7 |
Canada Jay | 6 | Dec 3 | Jan 5 |
Blue Jay | 6 | Dec 1 | Dec 2 |
Black-billed Magpie | 6 | Dec 1 | Dec 2 |
American Crow | 6 | Dec 1 | Dec 23 |
Common Raven | 6 | Dec 1 | Dec 2 |
Black-capped Chickadee | 6 | Dec 1 | Dec 2 |
Mountain Chickadee | 2 | Dec 7 | Dec 21 |
Boreal Chickadee | 6 | Dec 2 | Dec 23 |
Horned Lark | 6 | Dec 3 | Feb 28 |
Golden-crowned Kinglet | 5 | Dec 1 | Dec 12 |
White-breasted Nuthatch | 6 | Dec 1 | Dec 2 |
Red-breasted Nuthatch | 6 | Dec 1 | Dec 2 |
Brown Creeper | 6 | Dec 1 | Jan 2 |
European Starling | 6 | Dec 1 | Jan 4 |
Mountain Bluebird | 1 | Dec 16 | Dec 16 |
Townsend's Solitaire | 6 | Dec 1 | Dec 22 |
Varied Thrush | 2 | Dec 15 | Dec 20 |
Hermit Thrush | 3 | Dec 4 | Dec 29 |
American Robin | 6 | Dec 1 | Dec 6 |
Bohemian Waxwing | 6 | Dec 1 | Dec 8 |
Cedar Waxwing | 6 | Dec 1 | Jan 20 |
House Sparrow | 6 | Dec 1 | Dec 2 |
Evening Grosbeak | 6 | Dec 1 | Jan 4 |
Pine Grosbeak | 6 | Dec 1 | Dec 19 |
Grey-crowned Rosy-Finch | 2 | Dec 14 | Jan 4 |
House Finch | 6 | Dec 1 | Dec 2 |
Purple Finch | 6 | Dec 2 | Feb 26 |
Cassin's Finch | 2 | Dec 24 | Feb 22 |
Redpoll | 1 | Dec 1 | Dec 1 |
Redpoll (Common) | 5 | Dec 1 | Jan 7 |
Redpoll (Hoary) | 3 | Dec 2 | Dec 11 |
Red Crossbill | 5 | Dec 3 | Feb 10 |
White-winged Crossbill | 6 | Dec 1 | Dec 26 |
Pine Siskin | 6 | Dec 1 | Jan 7 |
American Goldfinch | 5 | Dec 5 | Jan 29 |
Lapland Longspur | 2 | Jan 5 | Jan 5 |
Snow Bunting | 6 | Dec 1 | Dec 10 |
Chipping Sparrow | 2 | Dec 6 | Jan 3 |
American Tree Sparrow | 5 | Dec 3 | Jan 6 |
Fox Sparrow | 1 | Jan 12 | Jan 12 |
Dark-eyed Junco | 6 | Dec 1 | Dec 2 |
White-crowned Sparrow | 1 | Feb 6 | Feb 6 |
Harris's Sparrow | 2 | Jan 3 | Feb 24 |
White-throated Sparrow | 6 | Dec 1 | Dec 31 |
Song Sparrow | 5 | Dec 2 | Jan 1 |
Swamp Sparrow | 1 | Jan 1 | Jan 1 |
Eastern Towhee | 1 | Dec 1 | Dec 1 |
Yellow-headed Blackbird | 1 | Dec 17 | Dec 17 |
Western Meadowlark | 1 | Dec 9 | Dec 9 |
Red-winged Blackbird | 1 | Dec 15 | Dec 15 |
Rusty Blackbird | 2 | Dec 5 | Feb 18 |
Common Grackle | 3 | Dec 13 | Feb 3 |
Cape May Warbler | 1 | Dec 3 | Dec 3 |
Pine Warbler | 1 | Jan 29 | Jan 29 |
Yellow-rumped Warbler | 2 | Dec 6 | Dec 30 |