Ruffed Grouse
Ruffed GrouseRuffed GrouseRuffed GrouseRuffed Grouse

Ruffed Grouse

Bonasa umbellus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Insufficient data
overall probability at Nahanni National Park
3 Verified records at Nahanni National Park
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The ruffed grouse (Bonasa umbellus) is a medium-sized grouse occurring in forests from the Appalachian Mountains across Canada to Alaska. It is the most widely distributed game bird in North America. It is not migratory. It is the only species in the genus Bonasa. The ruffed grouse is sometimes incorrectly referred to as a "partridge", an unrelated phasianid, and occasionally confused with the grey partridge, a bird of open areas rather than woodlands. The ruffed grouse is the state game bird of Pennsylvania, United States. Wikipedia →

Closest Relatives at Nahanni National Park

Willow Grouse
LC Endemic

Willow Grouse

☀️ Diurnal Bird

Lagopus lagopus

10–20% · With luck
American Spruce Grouse
LC

American Spruce Grouse

☀️ Diurnal Bird

Canachites canadensis

Insufficient data
Dusky Grouse
LC

Dusky Grouse

☀️ Diurnal Bird

Dendragapus obscurus

Insufficient data
Rock Ptarmigan
LC Endemic

Rock Ptarmigan

☀️ Diurnal Bird

Lagopus muta

Insufficient data

📅 Monthly Probability

📊

Fewer than 5 records of Ruffed Grouse at Nahanni National Park — not enough to chart months honestly.

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Wood Buffalo National Park 🇨🇦 Canada
20–30%
2 Voyageurs National Park 🇺🇸 United States
20–30%
3 Riding Mountain National Park 🇨🇦 Canada
20–30%
4 Kluane National Park 🇨🇦 Canada
10–20%
5 Elk Island National Park 🇨🇦 Canada
10–20%
6 Grand Teton National Park 🇺🇸 United States
10–20%
7 Glacier National Park 🇺🇸 United States
5–10%
8 Isle Royale National Park 🇺🇸 United States
5–10%
9 Great Bear Rainforest 🇨🇦 Canada
5–10%
10 Cape Breton Highlands National Park 🇨🇦 Canada
5–10%
11 Jasper National Park 🇨🇦 Canada
5–10%
12 Yellowstone National Park 🇺🇸 United States
<5%
13 Wrangell-St. Elias National Park 🇺🇸 United States
<5%
14 Pacific Rim National Park Reserve 🇨🇦 Canada
<5%
15 Banff National Park 🇨🇦 Canada
<5%
16 Gros Morne National Park 🇨🇦 Canada
<5%
17 Redwood National Park 🇺🇸 United States
<5%
18 Acadia National Park 🇺🇸 United States
<5%
19 Great Smoky Mountains National Park 🇺🇸 United States
<5%
20 Olympic National Park 🇺🇸 United States
<5%
21 Shenandoah National Park 🇺🇸 United States
<5%
22 Denali National Park 🇺🇸 United States
<5%
23 Nahanni National Park 🇨🇦 Canada
Insufficient data
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