Source : Webster's Revised Unabridged Dictionary (1913)

Stockdove \Stock"dove`\, n. (Zo["o]l.)
   A common European wild pigeon ({Columba [ae]nas}), so called
   because at one time believed to be the stock of the domestic
   pigeon, or, according to some, from its breeding in the
   stocks, or trunks, of trees.

   Note: The name is applied, also, to other related species, as
         the Indian stockdove ({Palumb[ae]na Eversmanni}).