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Cavity Nester Xlarge

Hooded Merganser

Lophodytes cucullatus

Floor
10" × 10"
Interior height
24"
Entrance hole
3.0"×4.0" oval
Mount height
4–15 ft
Breeds
Mar–Jun
Broods / yr
1
Cool Facts

Things you didn't know about the Hooded Merganser

01

Hooded Mergansers have a serrated bill perfectly adapted for catching fish — the smallest of the three North American mergansers.

02

Like Wood Ducks, ducklings leap from high cavity entrances within a day of hatching.

03

Females sometimes lay eggs in Wood Duck nests and vice-versa, a phenomenon called 'brood parasitism' or 'egg dumping'.

Attract Them

How to bring the Hooded Merganser to your yard

Hooded Mergansers will use Wood Duck-style nest boxes if you have suitable wooded wetland nearby.

Box placement

Mount a Wood Duck box on a pole over or beside water, with wood shavings inside.

Food

Small fish, crayfish, and aquatic insects — they catch their own.

Water

Clear forested wetland with fish.

Competitors

They share boxes with Wood Ducks; both species often coexist.

Avoid

Don't mount in murky agricultural ponds; they need clear water for sight-feeding.

Range & Habitat

Where you'll find them

A North American cavity-nesting fish-eating duck of forested wetlands.

By region
  • Northern US & Canada (breeding)

    Breeds across the boreal forest belt and northern US.

  • Eastern & Pacific US (year-round)

    Resident in suitable wetlands of the Pacific Northwest, Great Lakes, and Mid-Atlantic.

  • Southern US (winter)

    Massive winter flocks throughout the Southeast and along the Gulf Coast.

Habitat preferences

Wooded swamps, beaver ponds, slow rivers, and forested edges of lakes. Always near clear water with fish.

wooded swamps beaver ponds slow rivers
Approximate range centroids — see the regional breakdown above for the specifics
Seasonal Care

When to install. When to clean.

Install by
By February
Cleaning
September — refill with 4" shavings

Same setup as Wood Duck box but slightly smaller floor. Female lines nest with downy feathers.