Source : Webster's Revised Unabridged Dictionary (1913)

Raptorial \Rap*to"ri*al\ (-r[i^]*al), a. (Zo["o]l.)
   (a) Rapacious; living upon prey; -- said especially of
       certain birds.
   (b) Adapted for seizing prey; -- said of the legs, claws,
       etc., of insects, birds, and other animals.
   (c) Of or pertaining to the Raptores. See Illust.
   (f) of Aves.

Source : WordNet®

raptorial
     adj 1: relating to or characteristic of birds of prey; "raptorial
            claws and bill for seizing prey"
     2: living by preying on other animals especially by catching
        living prey; "a predatory bird"; "the rapacious wolf";
        "raptorial birds"; "ravening wolves"; "a vulturine taste
        for offal" [syn: {predatory}, {rapacious}, {ravening}, {vulturine},
         {vulturous}]