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699 Featured Specimen
Willow ptarmigan

Details

Willow ptarmigan

Lagopus lagopus

Size
35–44 cm · 430–810 g
Diet
Herbivore
Activity
Diurnal
Sociality
Loose group
Lifespan

A northern ptarmigan of tundra and shrublands, changing plumage with the seasons and turning white in winter.

Range

Habitat range map
Native range Occasional / Transient
PalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticPalearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearcticNearctic

Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)

Details

Habitat

Lives in tundra, willow scrub, damp grassland, and mountain shrub zones across Arctic and subarctic regions.

Appearance

Summer plumage is brown, while winter plumage is mostly white. Breeding males have red eye combs; females are strongly mottled.

Behavior

It walks and feeds on the ground, forming flocks in winter. White winter plumage camouflages birds on snow.

Feeding

Willow and birch buds, leaves, berries, and seeds are eaten, while chicks take many insects.

Reproduction

Ground nests are hidden in low vegetation. Females incubate, and chicks walk and forage soon after hatching.

Notes

Some populations fluctuate strongly in cycles, and changing snow seasons are an important concern.