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Woodcut by Robert Elliot Bewick of the swan named in memory of his father by William Yarrell. 1847 edition of Thomas Bewick's A History of British Birds.. C. columbianus is the smallest of the Holarctic swans, at 115–150 cm (45–59 in) in length, 168–211 cm (66–83 in) in wingspan and a weight range of 3.4–9.6 kg (7.5–21.2 lb).
Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels ... English: Bewick's swan (Cygnus bewickii) Date: 17 December 2021: Source: Own work:
The average egg size (for the mute swan) is 113 × 74 mm (4 + 1 ⁄ 2 x 3 in), weighing 340 g (12 oz), in a clutch size of 4 to 7, and an incubation period of 34–45 days. [27] Swans are highly protective of their nests.
The whooper swan is similar in appearance to Bewick's swan. It is larger, however, at a length of 140–165 centimetres (55–65 inches) and a wingspan of 205–275 cm (81–108 in). It is larger, however, at a length of 140–165 centimetres (55–65 inches) and a wingspan of 205–275 cm (81–108 in).
He described Bewick's swan in 1830, distinguishing it from the larger whooper swan. ... with six coloured illustrations of the fish of the natural size. Oblong Folio ...
Besides Bewick's swan and flocks of white-fronted geese, large waterfowl regularly present in the reserve in winter include the brent goose, pink-footed goose, barnacle goose and taiga bean goose. The swans tend to fly off in the day and return to feed in the late afternoon, and another spectacular sight at the end of winter afternoons is the ...
Trumpeter swan, Cygnus buccinator; Tundra swan, ... variable in size but generally plump, with broad, relatively short wings. ... Bewick's wren, ...
This is a list of the bird species recorded in England.The avifauna of England include a total of 625 species, of which 14 have been introduced by humans.. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of British Ornithologists' Union (BOU).