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Cavity Nester ⌀ 3.0" Large

Eastern Screech-Owl

Megascops asio

Floor
8" × 8"
Interior height
14"
Entrance hole
⌀ 3.0"
Mount height
10–30 ft
Breeds
Mar–May
Broods / yr
1
Cool Facts

Things you didn't know about the Eastern Screech-Owl

01

Eastern Screech-Owls come in two color morphs — gray and red — that occur in the same nest with no functional difference.

02

Their 'whinny' call drops in pitch like a horse's whinny, an unusual vocal pattern for an owl.

03

They've been documented bringing live snakes to their nest, where the snakes eat parasites and improve owl chick survival.

Attract Them

How to bring the Eastern Screech-Owl to your yard

Eastern Screech-Owls readily use nest boxes mounted on tree trunks. They're already in many yards but rarely seen.

Box placement

Mount a 3" hole box 10–20 ft up on a tree trunk. Add wood chips or shavings to the box floor.

Food

They hunt their own — small rodents, large insects, and small birds at night. No feeders.

Cover & landscaping

Mature trees with cavities and dense undergrowth nearby for daytime roosting.

Competitors

European Starlings and squirrels can take over boxes; a starling-resistant entrance and metal box predator guard help.

Avoid

Don't approach the box during daytime — disturbed adults may abandon.

Range & Habitat

Where you'll find them

A small forest owl of the eastern half of North America, common but rarely seen.

By region
  • Eastern US

    Year-round residents from Maine to Florida and west to eastern Texas.

  • Southeastern Canada

    Resident in southern Ontario, Quebec, and the Maritimes.

  • Mexico

    Local resident populations in northeastern Mexico.

Habitat preferences

Mature deciduous and mixed forest, suburban yards with old shade trees, parks. They thrive in well-treed neighborhoods.

deciduous forests suburbs parks
Approximate range centroids — see the regional breakdown above for the specifics
Seasonal Care

When to install. When to clean.

Install by
By February
Cleaning
November (after fledging and roost season)
Winter use
Yes — overnight roosts
Year-round across range
Resident — leave the box up 12 months. Day-roosts inside almost daily.

Often spotted at the entrance in afternoon sun. A wood-shaving floor 2" deep is essential.