rotche \rotche\, n. zool.
   a very small arctic sea bird mergulus alle, or alle
   alle common on both coasts of the atlantic in winter; --
   called also little auk, dovekie, rotch, rotchie, and
   sea dove.
   1913 webster
see also:
mergulus alle alle alle little auk dovekie rotch rotchie 
sea dove 

dove \dove\ du^v, n. oe. dove, duve, douve, as. d=ufe;
   akin to os. d=uba, d. duif, ohg. t=uba, g. taube, icel.
   d=ufa, sw. dufva, dan. due, goth. d=ub=o; perh. from
   the root of e. dive.
   1. zool. a pigeon of the genus columba and various
      related genera. the species are numerous.
      1913 webster

   note: the domestic dove, including the varieties called
         fantails, tumblers, carrier pigeons, etc., was
         derived from the rock pigeon columba livia of
         europe and asia; the turtledove of europe, celebrated
         for its sweet, plaintive note, is columba turtur or
         turtur vulgaris; the ringdove, the largest of
         european species, is columba palumbus; the carolina
         dove, or mourning dove, is zenaidura macroura; the
         sea dove is the little auk mergulus alle or alle
         alle. see turtledove, ground dove, and rock
         pigeon. the dove is a symbol of peace, innocence,
         gentleness, and affection; also, in art and in the
         scriptures, the typical symbol of the holy ghost.
         1913 webster

   2. a word of endearment for one regarded as pure and gentle.
      1913 webster

            o my dove, . . . let me hear thy voice. --cant. ii.
                                                  14.
      1913 webster

   3. a person advocating peace, compromise or conciliation
      rather than war or conflict. opposite of hawk.
      pjc

   dove tick zool., a mite argas reflexus which infests
      doves and other birds.

   soiled dove, a prostitute. slang dovecot
see also:
columba fantails tumblers carrier pigeons rock pigeon columba livia 
turtledove columba turtur turtur vulgaris ringdove columba palumbus 
carolina dove mourning dove zenaidura macroura sea dove mergulus alle 
alle alle turtledove ground dove rock pigeon hawk 
dove tick argas reflexus soiled dove