BIRDS MET WITH BY THE WILDFOWLER i 
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MUTE SWAN 
Cygnus olor (/]. E. Gmelin) 
The Mute Swan is a more or less domesticated species in | 
this country, although it is not improbable that in hard winters — 
a few really wild examples visit the British Isles. It is an in- — 
habitant of the Palzearctic region. The adults are white. It_ 
may be distinguished from the Hooper Swan by the black pro- 
tuberance at the base of the upper mandible. The young are © 
uniform greyish brown. Length about 60 in. | 
HOOPER SWAN 
Cygnus musicus (Bechstezn) 
This swan is a common winter visitor to our islands. The | 
adults are white. Immatures are ashy brown above, lighter 
below. Length 60 in. 
BEWICK’S SWAN 
Cygnus bewzckz ( Yarrell) ; 
This species of swan is similar to the Hooper Swan, but | 
may be distinguished by its smaller size and the shape of the — 
yellow patch on the upper mandible. Length 48 in. It is a_ 
fairly common autumn and winter visitor to the British Islands. 
LESSER SNOW GOOSE 
Chen hyperboreus (Pallas) 
This is a North American species breeding in Arctic 
regions and wandering south in winter. It is arare abnormal — 
300 ) 
