A little larger in their physical size, Titmice, Nuthatches, Downy Woodpeckers, and Bewick's Wrens use birdhouses with 1 and 1/4-inch openings. A little larger in their physical size, Titmice, Nuthatches, Downy Woodpeckers, and Bewick's Wrens use birdhouses with 1 and 1/4-inch openings. Wrens prefer a house that has an entry hole dimension of 1 1/8 inches, any larger and house sparrows and other less desirable birds will use them. Wherever you are in the U.S, there is a good chance to lure 20-30 possible cavity-nesting species to a birdhouse. The height of the hole must be 15 inches above the base of the birdhouse. Nuthatch and Bewick Wren birdhouses should be hung at 6 to 10 feet, the Titmouse house 6 to 15 feet high and the Downy Woodpecker between 6 and 20 feet high. The plan above specifies a 1.5″ hole 4″ off the floor. Basic Bluebird Nest Box. One excellent way to help native cavity-nesting birds survive and thrive is to put up a nestbox(es). Nest Box Placement. You can use a round hole 1 1/2″ diameter entrance hole for this Bluebird House and it will also be used by Tree Swallows and the Titmouse…

5–15 feet. 1.25” (3.2cm) 4” (10cm) 6-10’ (2-3m) *Entrance Height – location of hole above floor. The Tufted Titmouse Mating Habits.

Nest Box (Birdhouse) Plans. Nestbox Specifications . Proper placement of your bird houses will make them more inviting to the wild birds that you are trying to attract. While many species prefer to build loose nests of twigs and soft plant fibers in the forks of trees or bushes, they may be tempted to nest in a handmade sparrow birdhouse.

A 1.5″ entrance hole is the optimum diameter for bluebirds and tree swallows.
Depending on where you live, you should consider the direction that the hole faces.
If you live somewhere that stays hot through the summer you will want to place your bird house in a place that will provide afternoon shade.

Use rough-cut wood stock so that birds can grip wood surfaces. Do not add or buy any birdhouse with a perch. The most important element is getting the entrance hole size correct, especially to eliminate larger pest birds such as starlings from using the box. Birds That Use Birdhouses & 7 Tips To Attract Them Determining what birds use birdhouses is time well spent. 10-20’ (3-6m) Wren.

The floor should be 4 inches square and 3-6 inches below the entry hole. Make a 4″ by 4″ floor and a 9″ inside floor to ceiling height. Chapter 5 - The Most Basic and Easiest Birdhouse to Build – This is the basic birdhouse built from one six foot 1” x 6” board Chapter 6 - The Alternate Bluebird, Flycatcher, Titmouse and Nuthatch Plans – This is a great alternative style birdhouse I really like Chapter 7 - The Alternative Wren House Plan – This is an alternative plan to

Width X Depth X Height. The dimension of the birdhouse floor should be 7×7 inches and the total height of the birdhouse … The floor should be 4 inches square and 3-6 inches below the entry hole.