Most likely they aren’t even using the dens this time of year. Once the pups are able to keep up with the adults, the den is only a ‘check it out’ thing. Coyotes maintain a very large area. We’re talking square miles of range that overlap other’s range. Calling will work but only in the right time, place, and situation. Only experience will tell you what that is. Traps and snares will work, but also, only in the 3 previous mentioned conditions.
Coyotes aren’t really starving right now. There’s alot of dead deer, gut piles, and carcass’ in the country side. Lots of lost ducks and multitudes of other game. Kind of a smorgasboard ya know.
But their biggest downfall is their curiosity, not hunger. Their best defense is their senses of smell, eyesight, and hearing.
They won’t pass up a good caller because their curiosity tells them they have to check it out, hungry or not. But if one of those 3 senses kicks in, you’re done. Thus the right time, place and situation.
Me, I’d probably set traps. Scent post sets. It’s very hard for them to pass on a place to pee and tell everyone else that he was there. Maybe a few snares.