2002 Night Friends American Bats First Class Postage Stamps

Bats, the only mammal capable of full-powered flight, are vital to controlling insect pests that annoy humans and threaten farm crops.?A single bat can catch from 500 to 1000 insects such as mosquitos, moths, beetles, gnats, and crickets, in just one hour.?Issued in time for Halloween invitations, these stamps were designed to promote the hobby during National Stamp Collecting Month.