Howard University is the Bison and when they showed highlights of Bartell, the helmet looked alot like the Bills.
Apparently someone at ESPN got confused with this and for a few minutes, the Bills logo was in the lower left corner of the screen indicating it was the Bills' pick. A little while later it was fixed with the Skins logo showing.
This pick was at #50. five before the Bills. Having only tuned in occasionally to the draft telecast, seeing this, I briefly thought they had traded up to 50.