Nest Box Dimensions

Species

box depth in inches

box height in inches

entrance height in inches

entrance diameter in inches

placement height in feet

American Robin +

7x8

8

-

-

6-15

Eastern and Western Bluebird

5x5

8-12

6-10

1 1/2

4-6

Mountain Bluebird

5x5

8-12

6-10

1 1/2

4-6

Chickadees

4x4

8-10

6-8

1 1/8

4-15

Titmice

4x4

10-12

6-10

1 1/4

5-15

Ash-throated Flycatcher

6x6

8-12

6-10

1 1/2

5-15

Great Crested Flycatcher

6x6

8-12

6-10

1 3/4

5-15

Phoebes +

6x6

6

-

-

8-12

Brown-headed Pygmy and Red-Breasted Nuthatch

4x4

8-10

6-8

1 1/4

5-15

White-breasted Nuthatch

4x4

8-10

6-8

1 3/8

5-15

Prothonotory Warbler

5x5

6

4-5

1 1/8

4-8

Barn Swallow +

6x6

6

-

-

8-12

Purple Martin

6x6

6

1-2

2 1/4

6-20

Tree and Violet-Green Swallows

5x5

6-8

4-6

1 1/2

5-15

Downy Woodpecker

4x4

8-10

6-8

1 1/4

5-15

Hairy Woodpecker

6x6

12-15

9-12

1 1/2

8-20

Lewis' Woodpecker

7x7

16-18

14-16

2 1/2

12-20

Northern Flicker

7x7

16-18

14-16

2 1/2

6-20

Pileated Woodpecker

8x8

16-24

12-20

3x4

15-25

Red-Headed Woodpecker

6x6

12-15

9-12

2

10-20

Yellow-bellied Sapsucker

5x5

12-15

9-12

1 1/2

10-20

Bewick's and House Wrens

4x4

6-8

4-6

1 1/4

5-10

Carolina Wren

4x4

6-8

4-6

1 1/2

5-10

Barn Owls

10x18

15-18

4

6

12-18

Screech Owls
Kestrel

8x8

12-15

9-12

3

10-30

Osprey

48x48

platform

Red-tailed Hawk and Great Horned Owl

24x24

platform

Wood Ducks

10x18

10-24

12-16

4

10-20