Ornithology
- the male of most species of bird, but especially
- A Rooster or cockerel, the male of the domestic fowl or chicken, Gallus domesticus
- The English name of several species of bird incorporates the word cock, such as
- Blackcock (black grouse or blackgame), Tetrao tetrix
- Woodcock (Scolopax rusticula)
- Some of these are local names merely, as
- A Heather cock, Mountain Cock or Cock of the Woods is a male capercaillie or Wood-grouse (Tetrao urogallus).
- A cock o' the north is a Brambling, or Mountain Finch (Fringilla montifringilla).
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