This box has a 1 ½” hole and a 5” x 5” floor, which perfectly suits cavity-nesters such as Western or Eastern Bluebirds, as well as Tree or Violet-Green Swallows, while excluding invasive competitors such as European Starlings.
Each Nice Nest is unique work of functional art. No two are the same, but they all have some things in common: All Nice Nests have proper hole sizes, depths and floor dimensions for the target species. Every nestbox opens easily for cleanout or installation (just twist and pull the pin on the right side to unlock the front door, then pull the handle to open the box). Necessary ventilation is provided by a gap above the front door and the floor corners are cut out to allow for drainage and cooling/drying air flow. The interior of the front door is roughed-up to assist the fledglings when they ready to leave the nest. Nice Nests are for the birds.