Nest boxes · Wyoming

Birdhouses for Wyoming

19 cavity-nesting birds breed in Wyoming. The first starts nesting in April, so the box season opens in March.

Local conditions

Growing zones
USDA 3a–5b
Winter
Cold, very windy winters.
Summer
Short, warm summers with cool nights.
Box nesters
19 (14 year-round residents)
Hole sizes needed
10 distinct

Semi-arid high plains and basins with major mountain ranges; most towns lie above 5,000 ft.

Box calendar for Wyoming

BirdStatusHoleHeightUp byNestingClean out
Eastern Screech-OwlYear-round resident3 in10–30 ftMarchApril–MayJune
American KestrelYear-round resident3 in10–30 ftMarchApril–JuneJuly
Western Screech-OwlYear-round resident3 in10–30 ftMarchApril–JuneJuly
Northern Saw-whet OwlYear-round resident2 1/2 in10–20 ftMarchApril–JuneJuly
Black-capped ChickadeeYear-round resident1 1/8 in round5–15 ftAprilMay–JulyAugust
Downy WoodpeckerYear-round resident1 1/4 in round5–20 ft, box packed with wood shavingsAprilMay–JuneJuly
Hairy WoodpeckerYear-round resident1 1/2 in round8–20 ft, box packed with wood shavingsAprilMay–JuneJuly
White-breasted NuthatchYear-round resident1 1/4 in round5–20 ftAprilMay–JuneJuly
Northern FlickerYear-round resident2 1/2 in6–20 ftAprilMay–JuneJuly
Juniper TitmouseYear-round resident1 1/4 in5–15 ftAprilMay–JuneJuly
Ash-throated FlycatcherSummer breeder1 1/2 in5–20 ftAprilMay–JulyAugust
House WrenSummer breeder1 to 1 1/8 in round5–10 ft near shrubsMayJune–AugustSeptember
Red-breasted NuthatchYear-round resident1 1/4 in5–15 ftMayJune–JuneJuly
Tree SwallowSummer breeder1 1/2 in5–10 ftMayJune–JuneJuly
Mountain ChickadeeYear-round resident1 1/8 in5–15 ftMayJune–JulyAugust
Pygmy NuthatchYear-round resident1 1/4 in8–20 ftMayJune–JuneJuly
Mountain BluebirdSummer breeder1 9/16 in5–10 ftMayJune–JulyAugust
Violet-green SwallowSummer breeder1 1/2 in8–15 ftMayJune–JulyAugust
Lewis's WoodpeckerYear-round resident2 1/2 in12–20 ftMayJune–JulyAugust

Nesting windows are shifted from each species' mid-latitude season by Wyoming's latitude; year-round residents may also roost in boxes over winter, so clean them out in autumn and leave them up.

Bird guides for Wyoming

Frequently asked

When should I put up a birdhouse in Wyoming?

By March for the earliest local nester, the Eastern Screech-Owl, which starts nesting around April.

Which birds use nest boxes in Wyoming?

Eastern Screech-Owl, American Kestrel, Western Screech-Owl, Northern Saw-whet Owl, Black-capped Chickadee, Downy Woodpecker, Hairy Woodpecker, White-breasted Nuthatch, Northern Flicker, Juniper Titmouse, Ash-throated Flycatcher, House Wren, Red-breasted Nuthatch, Tree Swallow, Mountain Chickadee, Pygmy Nuthatch, Mountain Bluebird, Violet-green Swallow, Lewis's Woodpecker.

What hole size should a Wyoming birdhouse have?

It depends on the bird: the 19 local box nesters use 10 different hole sizes. See the table for each species.

Sources

  1. NestWatch nest box plans and species requirements — Cornell Lab
  2. eBird region overview and bar charts — Wyoming
  3. USDA Plant Hardiness Zone Map (2023)
  4. Audubon Native Plants Database

Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.