Find the prey and find the predator. So many factors play into the coyote and other predator numbers. Food, water, weather conditions all are a part of why coyotes live where they do. Coyotes have four paw drive and the only time they are tied to any one area is when they have young pups but even then, they can and do move the pups when they see the need to. That is only one of the reasons that we keep track of what is going on in the world of the predator, we want to know if they have any disease's that are reducing's their numbers, is drought limiting their prays numbers, has bitter cold and deep snow killed large herbivores for them to forage on, for a limited time. We also keep track of the number of pups per litter in the spring which is actually controlled by the health of the females. And that is controlled by food, water, weather, disease, and a lot of other environmental factors. These are all things that we keep track of, we keep in our notes what has been going on around us then in future years we can compare past to present and have a better idea of what, where and why the coyotes are doing what they are. Even if we don't want to kill the pups for control, we still want to know what the average litter size is for the fall hunting. We want to know what our coyote numbers will look like; we want to know where they will be when they will be there most likely. Coyotes don't always answer a siren they might come to it instead, they may have heard it too many times before, they might be too close to it, or it might take them several minutes to get to a place where they feel comfortable answering from.