The Christmas Bird Count - more than a century of citizen science


I am sure that birders in Vancouver Island are hoping that the Common Pochard will hang around long enough to be included in the local Christmas Bird Count.

Since 1900, North American birdwatchers have been contributing counts of local bird populations made in December to the Audubon society. The first count was held in 25 locations with 27 observers and recorded about 18,500 individuals of 89 species. Two Canadian locations participated: Scotch Lake, York County, New Brunswick and Toronto, Ontario.

In Winnipeg, the first Christmas bird count on record was held on December 20, 1925. Fourteen species were identified in the 24-km count circle centred on the intersection of Portage Avenue and St James St. More recently, the Christmas Bird Count has been organized by Nature Manitoba. Last year, the Winnipeg count was completed by 104 observers who found 40 species. I was curious to see how the results of the last count stacked up against with the INat observations uploaded so far for birds seen in December in the area we have chosen for the CNC21. Remember that if you are always welcome to upload images of any of the birds 'missing' or underrepresented in iNat, no matter when they were taken.

Common name 120 Wpg CBC iNat Dec Division 1
Canada Goose 31 1
Mallard 198 1
Ring-necked Duck 1 -
Common Goldeneye 1 -
Gray Partridge 105 2
Bald Eagle 5 2
Rock Pigeon (Feral Pigeon) 5544 1
Great Horned Owl 6 4
Red-bellied Woodpecker 4 -
Downy Woodpecker 178 9
Hairy Woodpecker 141 4
Black-backed Woodpecker 1 -
Northern Flicker (Yellow-shafted) 4 1
Pileated Woodpecker 11 5
Merlin 4 -
Northern Shrike 6 1
Blue Jay 98 1
Black-billed Magpie 83 -
American Crow 236 -
Common Raven 352 1
Black-capped Chickadee 1387 10
Red-breasted Nuthatch 12 1
White-breasted Nuthatch 414 9
Brown Creeper 2 2
American Robin 1 1
European Starling 190 -
Bohemian Waxwing 62 -
Fox Sparrow 1 -
Dark-eyed Junco 24 -
White-throated Sparrow 13 3
Song Sparrow 2 1
Northern Cardinal 3 -
Common Grackle 1 -
Pine Grosbeak (count week) -
House Finch 208 -
Purple Finch 2 -
Red Crossbill 2 1
Common Redpoll 1 -
Pine Siskin 3 -
American Goldfinch 17 -
House Sparrow 4068 1
House x Eurasian Tree Sparrow (hybrid) 1 1
Yellow-bellied Sapsucker - 1
Eastern Screech-Owl - 1
Gyrfalcon - 1
Sharp-shinned Hawk - 1
Cooper's Hawk - 1
Eurasian Tree Sparrow - 2
Townsend's Solitaire - 1
Varied Thrush - 1
Gray Catbird - 2
Cedar Waxwing - 1
total observations 13,423 78
total species 42 34

At the moment, the 121th Christmas Bird Count is still going forward - the same but different. As Birds Canada reiterates "If you choose not to participate this year, Birds Canada and our US partner, National Audubon Society, fully support your decision."

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Publicado por marykrieger marykrieger, 21 de novembro de 2020, 05:52 TARDE

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