Swan, Bewick’s Swan
Russian: Малая лебедь
Mongolian: Гунгар хун
length: 115-127 cm
span: 170-195 cm
Habitat: Breeds on far NE tundras by the Arctic
Ocean. Winters in NW Europe.
Very large. A smaller version of Whooper Swan, with proportionately slightly
shorter neck, bigger head and more compact body and bill; these difference
often difficult to appreciate when observing single birds. Safest separation by
pattern of bill, Tundra having slightly less yellow than black, the yellow
generally a square or rounded patch (diagnostic), rarely more wedge shaped
(recalling Whooper, but yellow not reaching in front of nostril, and black
around gape more solid). Also, with experience, voice is good clue.
Very rarely N American vagrants occur, distinguished by practically all-back
bill (only a tiny yellow patch in front of eye).
Greyish (often a shade darker than Whooper). Bill pattern of adult discernible
(black of adult is pink, yellow is off-white).