Mary Twitchell is a contributor for Storey Books titles including: Easy-To-Build Birdhouses, Storey Country Wisdom Bulletin A-212, Easy-To-Buld Bird Feeders, Storey Country Wisdom Bulletin A-209, Build Simple BirdBaths, Storey Country Wisdom Bulletin A-208 and What to Do When the Power Fails, Storey Country Wisdom Bulletin A-191.