Maybe a good call, but the OP didn't mention where he was hunting.

My point being, there are many areas where the yotes, and red wolves cross breed. As well as areas where the reds, and the greys cross breed.

I'd have to do some digging, but maybe the breeding between the reds and the greys has been over exaggerated, or even dis-proven, but I know the subject held up the Great Lakes Basin wolf hunt in the courts.

That said, I had to do a double take, and enlarge the photos... IMO the critters have some very wolfish traits. The ears was the first thing that drew my attention, as well as the muzzle of the one on the right. The tail, and muzzle on the one on the left look yotish, can't say fer the one on the right.

Maybe some different angles would help.

I should add as a caveat that I come from wolf country, and don't see yotes very often... The last one I remember seeing was the Winter of 99. From any pics I've seen over the years show that yotes tend to have bigger ears, and a fox-like muzzle. Though I guess the ears could be a regional thing as well... Being larger the farther South you go.