Bloodhounds have an amazing nose. A friend of my Fatherin-law had one and the problem while coon hunting with the bloodhound was it would strike a 2 day old track and if you pack a few lunches they work, but hotter nosed dogs like Walkers, Black n Tans, Plotts, ect worked better for us. But we never tried that on yotes. My bud in the open fields of Illinois uses Walkers with Lurchers they get a lot of coyotes.