The Collaborative International Dictionary of English v.0.48:
Pewee \Pe"wee\, n. [So called from its note.] 1. (Zool.) A common American tyrant flycatcher (Sayornis ph[oe]be, or Sayornis fuscus). Called also pewit, and ph[oe]be. [1913 Webster] 2. The woodcock. [Local, U.S.] [1913 Webster] Wood pewee (Zool.), a bird (Contopus virens) similar to the pewee (See Pewee, 1), but of smaller size. [1913 Webster]