Birders know you need the right house to attract the right bird. An entrance hole that's 1/8 inch too big or too small spell trouble, as does a roof that leaks or a floor that doesn't drain. Learn to build safe, species-appropriate houses for your favorite birds.

Foreword: Woodpeckers: the original birdhouse builders -- Many birds need a helping hand -- Build homes to benefit birds -- Birds in boxes -- Birds outside of boxes -- How to help the birds.