Woodlink NABB Audubon Cedar Bluebird House WoodLink is the exclusive licensee for the manufacturing of birding products to the design specifications of the National Audubon Society. Cedar Bluebird house with 1.56-inch entrance hole. Handcrafted with natural cedar. Easy to clean. Attracts more birds. Made in the U.S.A. Audubon is proud to connect people to birds and nature with quality, field tested products. Features Handcrafted with natural cedar Easy to clean Attracts more birds Handcrafted with natural cedar Easy to clean Attracts more birds Designed to the specifications of the National Audubon Society Made in the usa USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.