9/7/17, by CBS News

And then there were none: Last 2 wolves leave Banff’s Bow Valley

They were shot for seeking human food. Their pups were hit by trains. Now the last two remaining members of Banff National Park's Bow Valley pack have moved on…The remaining male, who has a GPS collar, has now joined a pack of four or five wolves in the southern part of the park. It's called the Spray pack. That male's two-year-old female offspring "hooked up" with another male wolf this summer, but hasn't been spotted recently, Whittington said.

http://www.cbc.ca/news/canada/calgary/wolves-banff-national-park-bow-valley-1.4278339