FWIW - Park Service addresses rumors including animals leaving - http://www.bozemandailychronicle.com/multimedia/videos/youtube_1c1490ee-b92f-11e3-9248-001a4bcf887a.html
Well that is (sort of) comforting.
So he’s saying the animals are leaving because of the winter. It is the worst part of the winter.
Maybe he’s got a point.