The Collaborative International Dictionary of English v.0.48:

Crow \Crow\, n. [AS. cr[=a]we a crow (in sense 1); akin to D.
   kraai, G. kr[aum]he; cf. Icel. kr[=a]ka crow. So named from
   its cry, from AS. cr[=a]wan to crow. See Crow, v. i. ]
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   1. (Zool.) A bird, usually black, of the genus Corvus,
      having a strong conical beak, with projecting bristles. It
      has a harsh, croaking note. See Caw.
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   Note: The common crow of Europe, or carrion crow, is Corvus
         corone. The common American crow is Corvus
         Americanus. See Carrion crow, and Illustr., under
         Carrion.
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   2. A bar of iron with a beak, crook, or claw; a bar of iron
      used as a lever; a crowbar.
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            Get me an iron crow, and bring it straight
            Unto my cell.                         --Shak.
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   3. The cry of the cock. See Crow, v. i., 1.
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   4. The mesentery of a beast; -- so called by butchers.
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   Carrion crow. See under Carrion.

   Crow blackbird (Zool.), an American bird (Quiscalus
      quiscula); -- called also purple grackle.

   Crow pheasant (Zool.), an Indian cuckoo; the common coucal.
      It is believed by the natives to give omens. See Coucal.


   Crow shrike (Zool.), any bird of the genera Gymnorhina,
      Craticus, or Strepera, mostly from Australia.

   Red-legged crow. See Crough.

   As the crow flies, in a direct line.

   To pick a crow, To pluck a crow, to state and adjust a
      difference or grievance (with any one).
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The Collaborative International Dictionary of English v.0.48:

Chough \Chough\, n. [OE. choughe, kowe (and cf. OE. ca), fr. AS.
   ce['o]; cf. also D. kauw, OHG. ch[=a]ha; perh. akin to E.
   caw. [root]22. Cf. Caddow.] (Zool.)
   A bird of the Crow family (Fregilus graculus) of Europe. It
   is of a black color, with a long, slender, curved bill and
   red legs; -- also called chauk, chauk-daw, chocard,
   Cornish chough, red-legged crow. The name is also applied
   to several allied birds, as the Alpine chough.
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   Cornish chough (Her.), a bird represented black, with red
      feet, and beak; -- called also aylet and sea swallow.
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