Resources for the Birds:

Birds of Michigan Field Guide by Stan Tekiela (great photos and facts)
A Klutz Guide to Backyard Birds (laminated fold-out)
Birds of North America, Fandex Family field Guide
Common Birds and Their Songs by Lang Elliot (has audio CD too)
What's That Bird? by Joseph Choiniere (includes facts about behaviors and nesting boxes)
Birds: 54 Fact Cards by McGraw-Hill Children's Publishing (color photos)
Birds Fact Pack by Learning Horizons (30 color drawings)
Learning About Birds by Dover ( little fact book with 12 stickers)
Birds Coloring Book by Dover (little but easy pictures)
Animal and Bird Tracks by Sierra Club ( laminated deck of cards)
Why Do Birds Do That by Michael Furtman ( adult book with great explanations)
Eggs and Chicks, Usborne Beginners
This Bird Can't Fly by Susan Canizares, Scholastic Science Emergent Readers

A huge site on birds at birdzilla.com
Lots of great pages on birds (geared for children) at enchantedlearning.com
Information on creating gardens or just learning about birds: michiganbirds.com

Check out my CD, "For The Birds"!