Prozac,
Where's your cabin at? We saw some also and lots of sign in hardy co.
I'm not sure if the call you have can vary the species of prey animal sounds. If it can I would just stick to one animal at a specific time and place. rabbit is one of the most popular distress callsin fairly long sequence and descending in pitch (as if it is losing strength), frequency would vary probably a few calls fairly quick at first, then 1 everyfive to ten minutes.

I would change calling locations frequently (wouldn't hang out at a specific location for more than 30-40 minutes max without any action). generally, I believe, if you get busted by a coyote before you get a shot, you won't be able to call that coyote in again to the same spot (too smart for that, I believe) I am certainly no expert when it come to predator hunting but have hunted with an expert or two.

If you wantsound expert advice on this, I'd post the question on either the small game/predator forum or the western forum. good luck