mouth calls
I'm an old caller, done a lot of it, not saying I am smart or good, but I have called in a lot of coyotes.
I've also had days like fishing, when there just are no coyotes biting.
I've been calling off and on since the middle 1980s, first with mouth calls & no success, then bought a Johnny Stewart cassette caller.
Used the caller with almost immediate success, and after successfully getting several with the caller, I started pacing my calling sequences more like the tapes, with regard to intervals and intensity and lulls, quieter sequences, you get the idea.
I started being able to call in 'yotes with the mouth calls after that.
I've used both off & on, without a lot of difference in successes.
I really prefer the portability the mouth calls offer, easy hands-free walking from section to section......nothing to pack but the rifle.
I have a lot of mouth calls, all bought when they were less expensive, and all still working today.
I like the Tally-Ho little mouth call, open-reed style....you can howl, bark and do rabbit squeals with it.
But I use a lot of calls, they can freeze up, so I always have several in the pockets and neck lanyards.
I think the most important thing is to sing it like you mean it, put some soul into it, sound like you are injured.....and start calling each location not too loudly.