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Location: Yellowstone National Park, Wyoming, USA
500mm Lens

At sunset, a very cute bison calf peeks out from behind the blooming sagebrush of yellow flowers.

Bison are North America’s largest land mammal. Has a distinctive humped profile with larger forequarters and smaller hindquarters; these traits are more pronounced in males. The brown wooly pelage is thickest around the neck, extending onto the shoulders and back in males. Males also have larger horns, which are stouter and more curled; female horns are more slender with upward pointing tips. Calves are reddish. Hair is longer in the winter. The Endangered Wood Bison (B. b. athabascae) from western Canada is slightly taller, darker, and woolier, with a larger hump than the Plains Bison

The bison breeding season is July-August, gestation length is 285 days, and females have only a single calf with birth coinciding with spring greenup. Females leave the herd and lie down to give birth. The female fiercely defends the newborn calf. Sexual maturity is reached at age 2.

Habitat: Forests & woodlands, Grasslands & prairies, Meadows & fields

Range: Rocky Mountains, Western Canada, Alaska

Information Source:

I started out as an artist, became a pilot, and ended up where I am now: nature photographer and educator. Being a pilot allowed me to observe the Earth and humanity’s impact on it from 30,000 feet for many years. It allowed me to experience different cultures and to see the world through many lenses.

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  • Rocksygal52
    Rocksygal52about 3 years ago

    Great capture of this cutie William.

    Cheers Jude

  • thank you Jude, Cheers :-)

    – William C. Gladish

  • Jon Lees
    Jon Leesabout 3 years ago

    nice image William!

  • thank you Jon :-)

    – William C. Gladish

  • Themis
    Themisabout 3 years ago

    Cute, curious and a bit apprehensive, I think – very nice catch

  • thank you Themis…I think this little guy was 100% curious as it moved closer and closer to my vehicle :-)

    – William C. Gladish

  • lorilee
    lorileeabout 3 years ago

    A wonderful capture!!

  • thank you :-)

    – William C. Gladish

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