A hummingbird program by Cathyrn and John Sill will be held July 10 at 6:30 p.m. at the Kern Youth Center at Lake Junaluska by the Great Smoky Mountains Audubon Society.

Cathryn Sill is the author of the “About” series of books for children, which includes About Hummingbirds. The book uses simple, easy to understand language to teach children what hummingbirds are, how they look, how they move, what they eat, and where they live. Many varieties of hummingbirds are introduced, from the smallest to the largest.

John Sill is a nature freelance artist and illustrator. He illustrated his wife’s “About” series.