Finished Gourd Birdhouse: Beauty and Birds for your garden or yard! This listing if for one (1) Handmade Gourd Birdhouse with 1 1/2" hole Gourds will range in size from 9"-10" with a diameter (at the bottom) of 7-8" round. Gourds will vary in shape in size.... gourds are a product of mother nature and will vary in shape and size! All gourds come with a leather strap for hanging. This listing is for a Mahogany birdhouse. All gourds are protected with an outdoor varnish. Attract Wrens (Wrens just love these birdhouses here in NY!), Swallows and other birds with this hole size