Definition of "cockbird"

cockbird

noun
plural cockbirds
1. The male of a game bird, especially of a pheasant.
2. The male of any bird.
  Quotations
  Then the old cock bird - he can be distinguished by his brighter plumage - hops out into full view.
  1934, Henry G. Lamond, An Aviary on the Plains, Sydney: Angus and Robertson, page 33