🐔Willow Grouse
The willow ptarmigan is a bird in the grouse tribe Tetraonini of the pheasant family Phasianidae. It is also known as the willow grouse. The willow ptarmigan breeds in birch and other forests and moorlands in northern Europe, the tundra of Scandinavia, Siberia, Alaska, and Canada, in particular in the provinces of Newfoundland and Labrador and Quebec. It is the state bird of Alaska.
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2025.
- Body mass
- 0.57 kg
- Body length
- not recorded
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 9 years
Everything we know about the Willow Grouse
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass0.57 kgAVONETOther figures ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
By sex
- Male720 kgWikidataQ178702
- Female580 kgWikidataQ178702
Figures vary
- 0.6 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Tail length0.11 mAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
Wing length0.2 mAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
Beak length0.02 mAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
Tarsus length0.04 mAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
Maximum lifespan9 yearsAnAgeDetails ↓Hide ↑
data quality: acceptable
Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0
Gestation21 daysAnAgeDetails ↓Hide ↑
data quality: acceptable
Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0
Litter sizeabout 6AnAgeDetails ↓Hide ↑
data quality: acceptable
Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0
Trophic levelHerbivoreAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
HabitatGrasslandAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
LifestyleTerrestrialAVONETDetails ↓Hide ↑
Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0
Volume l0.6 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
average = a mean across sexes or species in a group.
Not recorded for Willow Grouse yet: body length, shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classAves
- ›orderGalliformes
- ›familyPhasianidae
- ›genusLagopus
- ›speciesLagopus lagopus
- classBirds · Aves
- orderGamebirds · Galliformes
- subfamilyTetraoninae
- genusLagopus
All 13 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- orderSauria
- classBirds · Aves
- superorderGalloanserae
- orderGamebirds · Galliformes
- subfamilyTetraoninae
- genusLagopus
More about the Willow Grouse
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