Notice the calves, how small they are in relation to full grown buffalo. Such calves are easily injured during hazing and during capture.
Relocating Yellowstone buffalo who migrate into adjacent national forest lands is preferable to Montana Department of Livestock honcho Ms. Rankin's dedication to killing such buffalo. However, relocating buffalo is stressful for the buffalo, especially for the mothers and their calves. A far better solution would be having bison-migration locales west of and north of Yellowstone National Park become a national bison refuge - thus joining them with Yellowstone National Park. A Buffalo Sanctuary would provide a land base that these genetically pure bison deserve.
The book "Welfare Ranching" provides information about why cattle ranching ought not override buffalo rights in National Forest lands. Additional information about Yellowstone bison can be found on the pages of Buffalo Field Campaign:
http://www.buffalofieldcampaign.org/