The Collaborative International Dictionary of English v.0.48:

Bill \Bill\, v. i. [imp. & p. p. Billed; p. pr. & vb. n.
   Billing.]
   1. To strike; to peck. [Obs.]
      [1913 Webster]

   2. To join bills, as doves; to caress in fondness. "As
      pigeons bill." --Shak.
      [1913 Webster]

   To bill and coo, to interchange caresses; -- said of doves;
      also of demonstrative lovers. --Thackeray.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Billed \Billed\, a.
   Furnished with, or having, a bill, as a bird; -- used in
   composition; as, broad-billed.
   [1913 Webster]

WordNet (r) 3.0 (2006):

billed
    adj 1: having a beak or bill as specified; "a thick-billed
           bird"; "a long-billed cap"

Moby Thesaurus II by Grady Ward, 1.0:

29 Moby Thesaurus words for "billed":
   Roman-nosed, aquiline, aquiline-nosed, beak-nosed, beak-shaped,
   beaked, bill-like, bill-shaped, booked, clawlike, crookbilled,
   crooked, crooknosed, down-curving, hamate, hamiform, hamulate,
   hooked, hooklike, parrot-nosed, rhamphoid, rostrate, rostriform,
   scheduled, slated, to come, unciform, uncinate, unguiform