I'm not big on calling, but have had some success at it, kind of. Most of my Yote and Fox hunts were successful, either in the dark or at dawn. Most were accidents, I'd see a Fox or Yote while I was sitting for Deer.

When I went out for Fox or Yotes, bait worked best ( Kentucky Fried Chicken leftovers, in a bucket, hung in a bush). For the simple reason you knew where the Yotes or Fox were likely to appear. When I was calling they might come in from any direction except down wind.

Many times I'd call in low light and a Yote would be in my lap before I ever saw or heard it coming. By the time I got the shotgun swung in the right direction, they were gone.

I had good success using a Hawk call a few times, then waiting a few minutes and then using a wounded Rabbit. I don't really know whether it was the free meal bell ringing or Yotes just hated Hawks or both, but it worked. I bought a Hawk mouth call and can do a good wounded Rabbit with my lips (whistle).

Another good bait I've used is Kentucky Fried leftovers under pile (hundred pounds or more) of Horse manure. Works especially well in the winter. Takes a few days for it to get cooking well, but when it heats up, it throws out a good scent cone for a long ways.