Descriptions of wolf attacks on bison calves in Wood Buffalo National Park

Abstract

Canis lupus predation on Bison bison in late spring/early summer directed toward cow/calf herds. Five apparent defense strategies to protect calves were noted: 1) to run to the cow, 2) to run to a herd, 3) to run to the nearest bull, 4) to get out in front and center of a stampeding herd, and 5) to run through water bodies. When fleeing from wolves in open areas, cows with young calves took the lead, while bulls often were seen at the rear of the herds. When under attack from wolves, cows and particularly bulls were sometimes seen to defend the calves. -from Authors