Mammal field guide · Bovids

Photographing the American Bison

How to photograph the American Bison (Bos bison): the right lens for its size, shutter speeds for perched and moving animals, and when it's most often seen (June, July and August).

120–330 cm1/1600–1/2000 sNT
American Bison (Bos bison)
Photo: no rights reserved, uploaded by Kathlin Simpkins via iNaturalist
120–330 cm
Typical length (family range)
1/500 s
Shutter: perched / still
1/1600–1/2000 s
Shutter: action / flight
f/5.6–f/8
Aperture
27,120
Research-grade sightings in N. America
ModeManual + Auto ISOLock shutter & aperture, let ISO float
Shutter (still)1/500 s
Shutter (action)1/1600–1/2000 s
Aperturef/5.6–f/8
FocusAF-C + subject/eye detectionUse animal-eye AF; for herds stop down a little so several animals are sharp.
DriveHigh-speed burst
Lens100–400 mmFull-frame equivalent

Focal length needed to frame it#

For a subject about 225 cm long filling a third or half of the frame width horizontally.

Distance⅓ of frame (FF)½ of frame (FF)⅓ of frame (APS-C)⅓ of frame (MFT)
5 m (16 ft)26 mm40 mm18 mm13 mm
10 m (33 ft)53 mm79 mm35 mm26 mm
15 m (49 ft)79 mm119 mm53 mm39 mm
20 m (66 ft)105 mm159 mm70 mm53 mm
30 m (98 ft)158 mm238 mm105 mm79 mm
50 m (164 ft)263 mm397 mm175 mm131 mm

When to find it#

Jan: 2% Jan Feb: 3% Feb Mar: 4% Mar Apr: 6% Apr May: 12% May Jun: 17% Jun Jul: 19% Jul Aug: 15% Aug Sep: 12% Sep Oct: 6% Oct Nov: 2% Nov Dec: 2% Dec
Share of iNaturalist observations by month across North America. Peak months: June, July and August.

About the American Bison#

The American bison (Bison bison; pl.: bison), commonly known as the American buffalo, or simply buffalo (not to be confused with true buffalo), is a species of bison that is endemic to North America. It is one of two extant species of bison, along with the European bison. Its historical range circa 9000 BC is referred to as the great bison belt, a tract of rich grassland spanning from Alaska south to the Gulf of Mexico,...

Summary adapted from Wikipedia via iNaturalist (CC BY-SA 4.0).

Field-craft tips#

  • Bison: stay 25 m away (National Park rule).
  • Bighorn sheep are often on cliffs — expose for the bright rock.
  • Use animal-eye AF; for herds stop down a little so several animals are sharp.
  • Sightings peak in June, July and August, which is when you'll have the most chances.

Ethics#

  • The welfare of the animal comes first: if it changes its behaviour because of you, you are too close.
  • Stay on trails, respect closures around nests, leks, dens and haul-outs.
  • Avoid playback and baiting in sensitive seasons; never bait predators.
  • Don't share precise locations of rare, nesting or roosting animals publicly.

More Bovids#

Frequently asked questions#

What lens do I need to photograph an American Bison?

At about 225 cm long, an american bison fills a third of a full-frame image at 10 m with roughly 53 mm, or at 20 m with 105 mm.

What shutter speed should I use for an American Bison?

1/500 s when it's still; 1/1600–1/2000 s for action.

When is the best time to photograph a American Bison?

Observations in North America peak in June, July and August. Early morning and late afternoon give the best light and activity.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources