Pigeon

n. type of bird; stupid person, fool

Pigeons and doves constitute the family Columbidae within the order Columbiformes, which include some 300 species of near passerine birds. In general parlance the terms "dove" and "pigeon" are used somewhat interchangeably. In ornithological practice, there is a tendency for "dove" to be used for smaller species and "pigeon" for larger ones, but this is in no way consistently applied, and historically the common names for these birds involve a great deal of variation between the term "dove" and "pigeon." This family occurs worldwide, but the greatest variety is in the Indomalaya and Australasia ecozones. The young doves and pigeons are called "squabs."
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Noun
1. wild and domesticated birds having a heavy body and short legs
(hypernym) columbiform bird
(hyponym) pouter pigeon, pouter
(member-holonym) Columbidae, family Columbidae

n. pigeon, dove

(v. t.)
To pluck; to fleece; to swindle by tricks in gambling.
  

(n.)
Any bird of the order Columbae, of which numerous species occur in nearly all parts of the world.
  

(n.)
An unsuspected victim of sharpers; a gull.