Wren Birdhouse Mailbox Mr. Mrs. Wren. You can't beat an Amish country collectible handmade birdhouse for kicking up your primitive home decor. The fact that this is also a unique mailbox cinches the deal! Also a unique gift idea for a home & garden gift. The rear wood base is 13 3/4" tall, 5 1/2" wide. The mailbox birdhouse is 4" W,5" D, and 7 1/4" D.