Any recommendations on specific mouth call brands? Do you have any moving decoy setup while calling? I want to start calling them in but not ready to drop some change on something like a FoxPro electronic call.
IF... the area is high-pressure, ya just might want to consider NOT using a motion-decoy.
If they're educated at all... seems like they either turn and book-it the hell outta there as they were running on up... OR... they'll hang back where they feel safer and bark at it, effectively blowing that spot out.
EDIT: RE mouth call brands.
NONE.. of my Dan Thompson closed Reed calls can you EVER "blow too-hard into them" and cause the reeds to "lock-up" once you pass some pressure threshold.
Some other brands, (Primos 3rd Degree comes to mind) though they work fine and sound great, you CAN "blow too hard" into them and cause the reeds to lock-up under excessive pressure. Which I have to imagine would key-in a coyote to the fact that something's amiss.
In General?... you are NOT supposed to need to breath into the dang things all kindsa hard.
Let the tool do the job of being loud for you. (For example that's why Dan Thompson has models that are specifically for longer range calling, so the TOOL is doing the work, not You!) You should be doing more "cheek-breathing", rather than "diaphragm-breathing" when it comes blowing into the call. Doing a whole bunch of the latter... will make you winded/dizzy in nothin' flat.
EDIT: P.S.S. - ALWAYS bring at least a couple hand calls with you... just in case during the drive out there somehow somethign in your pack caused your eCaller or it's remote to get powered-on. Thus causing you to show up to the field with a dead eCaller. And with the drives costing in the neighborhood of $100+ each time for me, you quickly realize why having the hand calls with you as well is very important.
ALSO of Note? For Sh!ts and Giggles, if you're ever Upland hunting... and ya end up getting a long shotgun shot on a JackRabbit... and maybe it immobilizes him, but doesn't take him out initially? If you EVER luck-out to have this happen? LISTEN!!! Imprint HIS distress sounds into your brain! PAY ATTENTION to ALL the little nuances about how he sounded while he was wailing in pain before you got close enough for the coup de grace.