Bighorn sheep specs:

Name for male, female, and young

Ram, Ewe, Lamb

Female adult weight

weight icon 140 lbs toolip question mark

Male adult weight

weight icon 200 lbs toolip question mark

Neonate weight

weight icon 9.5 lbs toolip question mark

Young to adult size ratio

weight ratio icon 1:15 toolip question mark

Male to female size ratio

weight ratio icon 1.4:1 toolip question mark

Age range

icon calendar 20 toolip question mark

Geriatric age

Geriatric icon 8 toolip question mark

Weapons

Shield icon Horns toolip question mark

Average number of offspring

DNA icon 1 toolip question mark

Max number of offspring

DNA icon 2 toolip question mark

Length of gestation

DNA icon 175 days toolip question mark

Timing of parturition (i.e., birth)

calendar icon with question mark May-July toolip question mark

Age of first reproduction

icon sprerm and embryo 2 (occasionally 1) toolip question mark

Timing of rut

icon sprerm and embryo November-December toolip question mark

Social or solitary

social or solitary slider: 1 out of 4 toolip question mark

Hider or follower

hider or follower slider: 3 out of 4 toolip question mark

Harem holder or tending bond

harem holder or tending bond slider: 1 out of 4 toolip question mark

Browser or grazer

browser or grazer slider: 2.5 out of 4 toolip question mark

Primary summer food

Poa spp. (Grass), Carex spp. (Sedges), Astragalus spp. (Milkvetch) toolip question mark

Grass Sedges Milkvetch

Primary winter food

Poa spp. (Grass), Carex spp. (Sedges), Astragalus spp. (Milkvetch) toolip question mark

Grass Sedges Milkvetch

Migration strategy

Map icon Most often elevational migrants, sometimes residents toolip question mark

Primary predator

predator icon Coyotes, mountain lion toolip question mark

Common disease(s)

disease icon Pneumonia, Scrapie, contagious ecthyma toolip question mark

Winter habitat

lower elevation icon Lower elevation near escape terrain toolip question mark

Summer habitat

mountain icon High elevation, alpine habitats, rocky slopes near escape terrain toolip question mark

Icon credits: DNA by LAFS from the Noun Project, Food Chain by James Keane from the Noun Project
Blue grass picture: By Matt Lavin from Bozeman, Montana, USA - Poa secunda Uploaded by Jacopo Werther, CC BY-SA 2.0,
https://commons.wikimedia.org/w/index.php?curid=25134626

Bighorn sheep side view

Pubs!

Make a pub(lications) crawl through our recent findings:

LaSharr, T. N., R. A. Long, J. R. Heffelfinger, V. C. Bleich, P. R. Krausman, R. T. Bowyer, J. M. Shannon, R. W. Klaver, C. E. Brewer, M. Cox, A. A. Holland, A. Hubbs, C. P. Lehman, J. D. Muir, B. Sterling, and K. L. Monteith. 2019. Hunting mountain sheep: Do current harvest practices affect horn growth? Evolutionary Applications.
Bighorn sheep outline

LaSharr, T. N., R. A. Long, J. R. Heffelfinger, V. C. Bleich, P. R. Krausman, R. T. Bowyer, J. M. Shannon, E. M. Rominger, C. P. Lehman, M. Cox, and K. L. Monteith. 2019. Biological relevance of antler, horn, and pronghorn size in records programs. Journal of Mammalogy.
Bighorn sheep outline Mule Deer pronghorn Moose White-tailed deer Elk

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Research: our current projects

bighorn sheep fighting

Harvest Records Project
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bighorn sheep on snow

Western Wyoming Bighorn Sheep Project
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Species distribution:

sheep_map

Bighorn Sheep live in western North America mountains.
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