RE: calf killers
I'm going to assume that you've been using a rabbit distress call???
if so, try something different.
try a coyote howler. open reed howlers are hard to get used to, but are effective when distress calls have educated those da** dogs.
electronic calls are more convienient, but cost more.
sitting over bait is another option, however not a method i use. It is a waste of time to me to sit in one spot for hours looking at a dead animal, waiting for another animal to come eat it. i will, however, use bait to keep coyotes active in a certain area, then call at them.
where are you located?
What terrain features do you hunt?