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Elk

Elk in a field, photo by Stephen Ofsthun.
Stephen Ofsthun

Category
Mammals

Description

The second-largest antlered animal in North Amer­ica, the elk (Cervus canademis) weighs in between 700 and 1,000 pounds. It stands about 5 feet tall at the shoulder and is recognized by its light-colored winter coat and brown mane. 

Elk are ruminants, so they consume forbs, fruits and other plants. They also eat large amounts of grass and other rough-fiber vegetation during winter. In some areas, elk make long, seasonal migrations between summer and winter ranges, but they are non-migratory in Oklahoma. 

Size

Easily distinguished from other American ungu­lates, bull elk have tremendous antlers. A bull's antlers can grow up to four feet in height, making the animal about 9 feet tall overall. The antlers grow in phases as the elk gets older. Yearling bulls can grow spikes, buttons or up to five tines. 

Habitat

Today, elk are primarily found in western North America. In Oklahoma, herds of elk can be found on the Wichita Mountains National Wildlife Refuge and in the Pushmataha, Cookson Hills, Spavinaw and Cherokee wildlife management areas. Smaller herds are found on pri­vate lands in Kiowa, Comanche and Caddo counties. Since natural predators have largely disappeared, unmanaged elk have overpopulated their available range, causing habitat degradation. 

Life Cycle

During breeding months, the growing antlers even­tually turn to bone, and bulls remove the velvet by aggressively rubbing the antlers on trees and shrubs. The rubbing shines the antlers, preparing the bull for mating season. In the late summer, bulls are beard bugling to attract cows and intimidate other bulls. They fight with their antlers to determine who will mate with certain cows. Males with bigger antlers, typically the older bulls, usually win these fights and dominate herds. Bulls gather cows and calves into small groups known as harems. The bull tries to protect its harem from other bulls.

Calves typically are born in May and June. Calves are born scentless to help prevent predators. Typi­cally about 35 pounds at birth, calves spend their first weeks motionless while their mother feeds. Within a month, the calves begin eating grass while continuing to nurse throughout summer. Calves are independent from their mother by fall. 

During an elk's second year, raghorns, or young adult bulls, produce multi-tined antlers. Bulls shed their antlers in March and start growing their replacements by May. In August, the replacements are fully grown and covered by a blood ­filled velvet coating. 

How To Observe

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Photo by: USFWS
Mink.  Photo by Tom Koerner/USFWS
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Hunting Seasons

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