American Kestrel |
Pastures, fields, meadows, or orchards with mowed or grazed vegetation; place boxes on lone trees in fields, on trees along edges of woodlots, and on farm buildings. Facing south or east |
10-30 feet |
3″ diameter |
1/2 mile |
Ash-throated Flycatcher |
Chaparral, mesquite thickets, oak scrub, dry plains spotted with trees or cacti, deserts, and open deciduous and riparian woodlands |
3-20 feet |
1 3/4″ round |
200 feet |
Barn Owl |
Prefers open areas like fields, deserts and marshes which are in close proximity to hollow trees, cliffs, riverbanks, or man-made structures, including barns, bridges and other accessible sites, and which support healthy rodent populations |
8-25 feet |
3 3/4″ x 4 1/2″ elliptical |
100 feet |
Black-capped Chickadee |
Forests, woodlots, and yards with mature hardwood trees, forest edges, meadows; area should receive 40-60% sunlight, hole should face away from prevailing wind; 1″ wood shavings can be placed in box |
5-15 feet |
1 1/8″ round |
650 feet |
Brown-headed Nuthatch |
Open stands of pine-hardwood forests, clearings scattered with dead trees, forest edges, burned areas, cypress swamps |
5-10 feet |
1″ round |
1 box per 6 acres |
Carolina Chickadee |
Forests, woodlots, and yards with mature hardwood trees, forest edges, meadows; area should receive 40-60% sunlight, hole should face away from prevailing wind. Unlike other chickadees, Carolina Chickadee does not do much excavating, so wood chips are not necessary. |
4-15 feet |
1 1/8″ round |
30 feet |
Carolina Wren |
Forests with thick underbrush, forest edges, woodland clearings, open forests, shrub lands, suburban gardens, parks, backyards; near trees or tall shrubs |
3-6 feet |
1 1/2″ round, or 2 1/2″ x 5″ slot |
330 feet |
Chestnut-backed Chickadee |
Coniferous forests, mixed deciduous-coniferous forests, forest edges, woodlands, thickets, burned areas, often near streams; hole should face away from prevailing wind; 1″ wood shavings can be placed in box |
5-15 feet |
1 1/8″ round |
160 feet |
Common Goldeneye |
Breeding habitat is limited to aquatic areas with dead trees, in boreal, deciduous, aspen and montane woods; favor calm, large, clear lakes without much vegetation or fish. Please several inches of wood shavings in the box in early spring. |
6-30 feet |
3 1/4″ high x 4 1/4″ wide |
2/3 mile |
Eastern Bluebird |
Open field or lawn; orchards; open, rural country with scattered trees and low or sparse ground cover; entrance hole should face open field, preferring east, north, south, and then west-facing directions |
3-6 feet |
1 1/2″ diameter (round), or 2 1/4″ high x 1 3/8″ wide (oval) |
300 feet |
Eastern Screech-Owl |
Forests, parks, woodland clearings, forest edges, wooded stream edges, under a tree limb. Add 2″-3″ of wood shavings |
10-30 feet |
3″ round |
100 feet |
European Starling |
Habitat generalists, nesting in areas ranging from rural and agricultural to suburban and urban areas, but they avoid heavily wooded, mountainous, and arid regions |
providing nest boxes is discouraged for this species in the U.S. |
can squeeze through holes with 1 9/16″ diameter |
5 feet |
Great Crested Flycatcher |
Deciduous or mixed deciduous-coniferous forests, forest edges, woodlots, orchards, parks, on post or tree at forest edge |
3-20 feet |
1 3/4″ round |
1 box per 6 acres |
Hooded Merganser |
Quiet, shallow, clear water pools surrounded by or near the edge of deciduous woods: small forest pools, ponds, swamps; add 3″ of wood shavings; add ladder under inside of entrance hole for young to climb out |
6-25 feet |
3″ high by 4″ wide horizontal oval |
100 feet |
House Sparrow |
Agricultural, suburban, and urban areas; tend to avoid woodlands, forests, grasslands, and deserts |
providing nest boxes is discouraged for this species in the U.S. |
can fit through holes with 1 1/4″ diameter |
variable |
House Wren |
Variety of habitats, farmland, openings, open forests, forest edges, shrub lands, suburban gardens, parks, backyards; near trees or tall shrubs |
5-10 feet |
1″ round |
100 feet |
Mountain Bluebird |
Open field or lawn; orchards; open, rural country with scattered trees and low or sparse ground cover; will also use deciduous and coniferous forest edges; entrance hole should face open field, preferring east, north, south, and then west-facing directions |
4-6 feet |
1 9/16″ diameter |
300 feet |
Mountain Chickadee |
Coniferous forests, forest edges, woodland clearings; hole should face away from prevailing wind; 1″ wood shavings can be placed in box |
5-15 feet |
1 1/8″ round |
1 box per 10 acres |
Northern Flicker |
Pastures, groves, woodlots, orchards, fields, meadows, woodland clearings, forest edges, urban parks, on pole or tree at forest edge or along fence rows bordering crop fields; south or east facing; box should be completely filled with wood chips or shavings |
6-12 feet |
2 1/2″ round |
330 feet |
Prothonotary Warbler |
Lowland hardwood forests subject to flooding, stagnant water, swamps, ponds, marshes, streams, flooded river valleys, wet bottomlands; box should be over or near water |
4-12 feet |
1 1/4″ round |
235 feet |
Purple Martin |
Broad open areas (meadows, fields, farmland, swamps, ponds, lakes, rivers) with unobstructed space for foraging on flying insects; there should be no trees or buildings within 40 feet of the martin pole in any direction; houses should be painted white |
10-15 feet |
2 1/8″ round or 3″ wide x 1 3/16″ high crescent |
10 feet |
Red-breasted Nuthatch |
Mixed coniferous-deciduous forests, shrub lands, swamps, farmlands, suburban parks; hole should face away from prevailing wind; 1″ wood shavings can be placed in box |
5-15 feet |
1 1/4″ round |
150 feet |
Tree Swallow |
Open fields near water, expansive open areas, marshes, meadows, wooded swamps; on a post in open areas near tree or fence, east facing |
5-6 feet |
1 3/8″ round |
35 feet |
Tufted Titmouse |
Deciduous forest, thick timber stands, woodland clearings, forest edges, woodlots, riparian and mesquite habitats; hole should face away from prevailing wind |
5-15 feet |
1 1/4″ round |
580 feet |
Violet-green Swallow |
Open or broken deciduous or mixed deciduous-coniferous forests, wooded canyons, edges of dense forest |
9-15 feet |
1 3/8″ round |
30 feet |
Western Bluebird |
open field or lawn; orchards; open, rural country with scattered trees and low or sparse ground cover; will also use deciduous and coniferous forest edges; entrance hole should face open field, preferring east, north, south, and then west-facing directions |
4-6 feet |
1 1/2″ diameter |
215 feet |
Western Screech-Owl |
Lower elevations, forests, parks, woodland clearings, forest edges, deserts, wooded stream edges, under a tree limb, south or east facing. Add 2″-3″ of wood shavings |
10-30 feet |
3″ round |
1,000 feet |
White-breasted Nuthatch |
Deciduous woodlands, mature forests, woodlots, near open areas, forest edges, orchards, often near water; hole should face away from prevailing wind; 1″ wood shavings can be placed in box |
5-20 feet |
1 1/4″ round |
1,040 feet |
Wood Duck |
Forested wetlands or near marshes, swamps, and beaver ponds; boxes can be installed on posts or poles in water, at least 3 feet above the high water mark, facing south or west. If installing on land, choose a site within 100 feet of water with no branches near the entrance hole and with a predator guard. Place 4 inches of wood shaving in box floor. Box should have fledgling ladder inside entrance hole to enable young to climb out. |
6-30 feet |
4″ wide, 3″ high |
600 feet |