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SPECIES PROFILE
Plains Bison (Bison bison)
Bison
IUCN STATUS
Near Threatened
CONSERVATION STATUS
Near Threatened
CLASS
Mammalia
GEOGRAPHICAL RANGE
Historically across the Great Plains from Texas to the Northwest Territories; now restricted to managed herds in national and provincial parks
DIET
Herbivore
HABITAT
Temperate grasslands and prairie parkland; requires large unfragmented areas for normal grazing behaviour
🔬 Classification
PHYLUM
Chordata
CLASS
Mammalia
ORDER
Artiodactyla
FAMILY
Bovidae
GENUS
Bison
📋 Description
SIZE
Bulls 800–1,000 kg, shoulder height up to 1.8 m; cows 360–540 kg
COLORATION
Dark brown shaggy coat with a massive humped shoulder, beard, and short curved horns
ADAPTATIONS
Massive shoulder muscles support a heavy skull used for snow-plowing to reach buried grasses in winter
🌿 Ecology
HABITAT
Temperate grasslands and prairie parkland; requires large unfragmented areas for normal grazing behaviour
DIET
Herbivore
GEOGRAPHIC RANGE
Historically across the Great Plains from Texas to the Northwest Territories; now restricted to managed herds in national and provincial parks
REPRODUCTION
Rut in July and August with bulls competing for females; single calf born May to June; cows are highly protective
DIET DETAILS
Grasses and sedges year-round; may browse shrubs and forbs when grass is scarce
⚠️ Threats & Conservation
PRIMARY THREATS
Historically eliminated by commercial hunting; current threats include disease transmission from cattle, hybridisation, and limited habitat
💡 Interesting Facts
1
Bison once numbered 30–60 million on the Great Plains; their near-extinction in the late 1800s drove multiple Indigenous nations into starvation and cultural crisis.
2
Canada's bison are genetically distinct from American herds; Elk Island serves as a genetic reservoir for restoration projects across North America.
🔭 Sighting Guide
📍 BEST PLACES TO SIGHT
Elk Island National Park near Sherwood Park, AB, has free-roaming bison herds visible year-round
Grasslands National Park near Val Marie, SK, supports a reintroduced bison herd in natural prairie
Riding Mountain National Park, MB, hosts a bison herd in a fenced enclosure within the park
🗓️ BEST TIME TO SIGHT
Elk Island National Park is the safest and most reliable viewing location; winter snowshoe trail visits bring you close to grazing herds.
🎯 SIGHTING TIPS
Year-round. Elk Island National Park near Edmonton maintains a free-roaming herd best seen at dawn and dusk.
