Where can you find the plans and instructions for building small birds for lawn ornaments that have wings that spin with the wind?

I think they are called whirlygigs.

There are several sites on Whirly Gigs, Anders Lunde has a Book with plans and ideas on making them. Its called "Easy to make Whirly Gigs (woodworking Whirly Gigs) GOOD-LUCK ! Another Excellent source is Meisel Hardware Specialties. They have many whirly gigs + other ornamental things to make. * www.meiselwoodhobby.com