It is an education to grow up on a ranch or farm, life, death, birth and everything in-between. Over the years I figured out that often less is better with coyotes. So very often keeping it simple seems to work the best for calling every animal so that you keep them guessing and interested in coming to see exactly what is going on. Hot air moving through an open window is better than no air movement at all. My grandma used to wet a kitchen towel and hang it on the west side window in her house so that the breeze coming in would cool the air through evaporation. Crack the top window open 6-8 inches and do the same for the bottom window cooler air in the bottom and warmer air out the top window.