All birdhouses are fully functional, handcrafted from cedar, all have an easy side access door for viewing and cleaning. all are fully vented and have drain holes in base, outside is sealed for long lasting weather protection. Inside is all natural. Approximate size 11" tall X 8 to 9" wide X 8" deep, they have a 1.5" entry hole that is 5.5" high, comes with perch, and is ideal for smaller birds like Wrens, Sparrows, Finches, Bluebirds etc.(wood color and patterns on the roof shingles may vary due to designs in the wood) FREE "1 to 3 day" SHIPPING continental U.S