RE: coyote mouth calls
Primo's hot dog and little dog are good choices also,if you have used diaphram turkey calls primos has some diaphram predator calls that have an excellent sound to them,but this changes with the user since every body uses them differently.I like them because you can just put them in your pocket.I have a knight&hale e-z howler but I hardly ever used it and give it to my little girl to play with,she's ten and learning.good luck!