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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Crested duck:

XXXX: White-crested duck
SMEWS: White-crested ducks
SMEW: White-crested duck
SMEW: Crested duck
SMEW: Crested diving duck
SMEW: White-crested diving duck
SMEW: Crested fish-eating duck.
SMEW: Duck with a large white crest