Ring-necked
Duck
(Aythyacollaris)
Photographed at Phoenix Zoo, Phoenix, Arizona Apr 2009
The
most common diving duck to be found on small ponds in migration, the
Ring-necked Duck is more easily recognized by the bold white ring around its
bill than the subtle purplish one around its neck.
Both
the common name and the scientific name "collaris" refer to
one of the Ring-necked Duck's most inconspicuous field marks. Rarely visible in
the field, the chestnut collar on the black neck is noticeable when the bird is
in the hand. Such subtle characters would have been obvious to the people first
describing the duck from dead specimens.
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