The Collaborative International Dictionary of English v.0.48:

Nidificate \Nid"i*fi*cate\, v. i. [imp. & p. p. Nidificated;
   p. pr. & vb. n. Nidificating.] [L. nidificare, nidificatum;
   nidus nest + -ficare (in comp.) to make. See -fy, and cf.
   nest.]
   To make a nest.
   [1913 Webster]

         Where are the fishes which nidificated in trees?
                                                  --Lowell.
   [1913 Webster]