Also, as a side note...
Don't be too hung up on what species are native to your area. Worry about pitch and emotion, and focus on sounding like an easy meal. The Verminator Syco Tweety CAN sound like anything from fawn distress to woodpecker distress, but I usually play it with a pitch somewhere in the jackrabbit and cottontail pitch, but frankly, it doesn't sound specifically like a jackrabbit or cottontail at all. It dang sure sounds like some small animal getting torn to shreds though, which is what brings dogs running!
Guys spout it off all the time "don't use jackrabbit calls in the east where you only have cottontails", but frankly, I don't buy it. I've used the same lanyard of calls in a dozen or so different states, and network with callers all over the country. If you sound like a meal, it won't matter if you're spot on for a jackrabbit or a cottontail or not.
The higher the pitch, the easier the target, but the smaller the meal (birds, mice), the larger you get, the harder the target, but more reward (fawn distress). I generally play in the "rabbit" range of pitches, favoring the higher end more than the lower end.
Pup distress (coyote) will work very well certain times of year, and isn't worth a hoot at other times.
I personally focus on distress calls because coyotes eat year round. Sure, at certain times of year, different specific calls will work better than they do in other parts of the year (turkey calls during breeding, hatching, or moulting, fawn distress during birthing, pup distress during early-mid summer, female calls during breeding, etc etc etc), but again, a coyote has to eat all year round. I use rabbit distress 90% of the time, and a "season specific call" about the other 10%
Fox and bobcat calling is different, but we're talking coyotes here, so I won't waste the space on the specific nuances of calling small dogs or creek kitties here. If you're interested, ask, or shoot me a PM.