The Collaborative International Dictionary of English v.0.48:

Trochil \Tro"chil\, n. [Cf. F. trochile. See Trochilus.]
   (Zool.)
   The crocodile bird.
   [1913 Webster]

         The crocodile . . . opens his chaps to let the trochil
         in to pick his teeth, which gives it the usual feeding.
                                                  --Sir T.
                                                  Herbert.
   [1913 Webster]