Three cavity sizes. Three open-front shelves. Together they cover every species that will nest within human reach in North America — and the modular plate + panel system means you can change which bird you're inviting without changing the house.
Enclosed boxes with a precision-bored entrance hole. The classic shape that bluebirds, chickadees, swallows, and woodpeckers all expect.
The starter house. Sized for the small cavity nesters that dominate suburban yards — chickadees, wrens, and the smaller bluebirds.
The mid-range workhorse. Tree swallows, larger bluebirds, titmice, and most of the cavity-nesting woodpeckers fit comfortably.
Built for the bigger cavity nesters — Northern Flicker, American Kestrel, and Eastern Screech Owl all call this size home.
No entrance hole, no front wall — just a sheltered ledge for the species that refuse cavities. Robins, phoebes, and Mourning Doves nest here.
Tapered open-front shelf for phoebes, swallows, catbirds, and other ledge nesters that won't enter a cavity.
Sized for American Robins, Blackbirds, and Wagtails — open at the front so the parents can keep an eye on the nest.
Wide low-walled platform purpose-built for Mourning Doves, who prefer the visibility of a near-flat ledge.
Every cavity model is four printed parts that snap together. Swap any one of them — most often the panel — and you have a different house.
Three walls, a floor, drainage holes, and the eave-shielded vent slits at the top.
Front wall with the bird's clearance hole, integrated U-shape flange, and screw mounts to the body.
The species-targeted entrance hole. The smallest part, the biggest variable. Drops live here.
Flat slab with through-bolts to the body. Recycled PETG, weatherproof, decades of life.