I as most are aware of herd migrations. Most of the time I think of these herds migrating from summer range to lower elevations & valley regions for winter. I guess I always envisioned that being no more than 50 miles at most. The only exception I could think of off the top of my head in North America in regard to ungulates was caribou (the longest?). According to the article this is the 2nd longest land migration of ungulates in North America
In my case though I was unaware of the distance traveled by Mule Deer specifically, and the documented 150 miles is surprising to me. The other thing I notice in this video is that the apparent weather during this seems to be rather benign. I have always associated the migration to the onset of winter, snow, and and lack of accessible food stuffs due to snow cover. In a lot of the video you see open water and lack of snow cover.
Video
https://vimeo.com/88619272
Article link
http://migrationinitiative.org/content/red-desert-hoback-migration-assessment
In my case though I was unaware of the distance traveled by Mule Deer specifically, and the documented 150 miles is surprising to me. The other thing I notice in this video is that the apparent weather during this seems to be rather benign. I have always associated the migration to the onset of winter, snow, and and lack of accessible food stuffs due to snow cover. In a lot of the video you see open water and lack of snow cover.
Video
https://vimeo.com/88619272
Article link
http://migrationinitiative.org/content/red-desert-hoback-migration-assessment