The Collaborative International Dictionary of English v.0.48:

pastor \pas"tor\ (p[.a]s"t[~e]r), n. [L., fr. pascere, pastum,
   to pasture, to feed. Cf. Pabulum, Pasture, Food.]
   1. A shepherd; one who has the care of flocks and herds.
      [1913 Webster]

   2. A guardian; a keeper; specifically (Eccl.), a minister
      having the charge of a church and parish.
      [1913 Webster]

   3. (Zool.) A species of starling (Pastor roseus), native of
      the plains of Western Asia and Eastern Europe. Its head is
      crested and glossy greenish black, and its back is rosy.
      It feeds largely upon locusts.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Pastor roseus
    n 1: glossy black bird with pink back and abdomen; chiefly Asian
         [syn: rose-colored starling, rose-colored pastor,
         Pastor sturnus, Pastor roseus]