1. Anything
set up to frighten crows or another birds from cornfields; hence, anything terifying
without danger. "A
scarecrow set to frighten fools away." (Dryden)
2. A
face clad in rags and tatters. "No
eye hath seen such scarecrows. I
will not
march with them
through Coventry, that's flat." (Shak)
3.
The black tern.
Source: Websters Vocabulary