Canvasback
Aythya valisineria (Wilson, A, 1814) (0, 7)
Photo © By Mike's Birds from Riverside, CA, US - Canvasback, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=81472000
STATUS
North America. Monotypic.
OVERVIEW
Two spring and two summer records from a duck expected to arrive in winter, but, outside the winter period ducks gather at favoured moulting waters.
Hybrids with Common Pochard A. ferina are known.
BBRC RECORDS
1). 1996 Kent Cliffe, male, probably first-winter, 7th December.
(P. Larkin & D. Mercer, Kent Bird Report 2001: 162-164; BOURC (2003), Ibis 145: 178-183; K. Vincombe, British Birds 96: 113-114; M. J. Rogers and the Rarities Committee, British Birds 96: 556; P. Larkin & D. Mercer, British Birds 97: 139-143).
2.0). 1997 Norfolk Wissington Beet Factory, male, intermittently, 18th to 25th January; same, Welney WWT, intermittently, 21st January to 10th March; presumed same, 3rd December to 9th March 1998, photo.
(R. Millington, Birding World 10 (1): 16-18, photos; Birding World 10 (2): 46, photos; Birding World 10 (12): 448, 467, photos; Birding World 11 (2): 45, photo; M. J. Rogers and the Rarities Committee, British Birds 91: 522; Norfolk Bird & Mammal Report 1997: photos; M. J. Rogers and the Rarities Committee, British Birds 92: 566, plate 232; BOURC (1999), 141: 176; British Birds 97: plates 75 & 76).
2.1). 1997 Essex Abberton Reservoir, male, 23rd to 24th and 30th November; presumed same as Norfolk.
(Birding World 10 (11): 409, photo; M. J. Rogers and the Rarities Committee, British Birds 92: 566).
2.2). 1999 Essex Abberton Reservoir, male, 6th to 16th April; presumed same as Essex, Norfolk, 1997, 1998.
(Birding World 12 (4): 137, photo; M. J. Rogers and the Rarities Committee, British Birds 92: 611).
3). 1999 Kent Monks' Wall, male, 28th May.
(M. J. Rogers and the Rarities Committee, British Birds 94: 464).
2.3). 1999 Essex Abberton Reservoir, male, 8th November to 15th February 2000; presumed same as Essex, Norfolk, 1997, 1998.
(M. J. Rogers and the Rarities Committee, British Birds 93: 523).
4.0). 2000 Kent Lade, Dungeness, male, intermittently, 29th January to 14th March, photo.
(Birding World 13 (2): 48, photo; Birding World 13 (11): 431, photo; British Birds 93: plate 96; M. J. Rogers and the Rarities Committee, British Birds 94: 463-464; Kent Bird Report 2000: plate 5).
5). 2000 Cornwall Par beach pool, male, 19th April.
(M. J. Rogers and the Rarities Committee, British Birds 94: 463).
6). 2000 Orkney Loch of Rummie, Sanday, female, 21st to 23rd June, photo.
(I. Dillon, Birding Scotland 3 (4): 155-156, plates 102 & 103; M. J. Rogers and the Rarities Committee, British Birds 98: 634; Forrester & Andrews et al., 2007: photo).
2.4). 2000 Essex Abberton Reservoir, male, 12th November to 13th February 2001; same, Ardleigh Reservoir, 29th November; presumed returning individual of 2000.
(M. J. Rogers and the Rarities Committee, British Birds 94: 463; M. J. Rogers and the Rarities Committee, British Birds 95: 487; M. J. Rogers and the Rarities Committee, British Birds 97: 563).
4.1). 2000 Kent Lade, Dungeness, male, 18th November to 8th March 2001; presumed returning individual.
(Birding World 13 (2): 48, photo; Birding World 13 (11): 431, photo; British Birds 93: plate 96; M. J. Rogers and the Rarities Committee, British Birds 94: 463-464; M. J. Rogers and the Rarities Committee, British Birds 95: 487).
7). 2002 Greater Manchester Pennington Flash, male, 11th to 30th July, photo.
(Birding World 15 (7): 270, photo; M. J. Rogers and the Rarities Committee, British Birds 96: 556, plate 340).
P). 2023 Essex Abberton Reservoir, adult male, 11th November to 7th January, again, 27th to 31st January 2024, photo.
; (birding information services).
P). 2024 Essex Abberton Reservoir, adult male, 12th August to 4th November, photo; presumed returning individual.
(birding information services).
