Over time I noticed several things about coyotes during their pupping season. As breeding season was in full swing the paired coyotes would pick their territory and area that they wanted to have their pups in. They would set up home and run others out of it. At that time, use of coyote vocalizations works well, female challenge, female breeding whines and whimpers, male challenge, interrogation calls just asking who is around and is this area taken? Next comes the time that they are setting up their boundary lines and marking them, and howling to let the surrounding areas know that it is occupied. When you get in their territory and howl with challenge calls or simply use interrogation howls at this time, they will respond often by answering with their own howls, become quiet and at that time start coming in to investigate and run out the intruder if need be. Then comes the time that they are preparing for the pups to be born, they will be going around in their territory to find an appropriate den and will clean out several holes for the pups to be born in, they will be actively marking the boundary line of their area and telling others that they don't want them in their area, soon they will have the pups, at this time mom will be spending her time close to the den she has chosen, they will talk but not as much and at specific times of the day more so than at other times of the year. When the pups are born for the first few weeks' mom stays at home during the night with the pups, the male will be out hunting at night, and they will talk to each other as he is coming in near sunrise, he will give one howl and she will answer with one howl as he moves closer, he will give one more howl she will answer with one howl. Like humans they have different tones in their voices as a rule, the male will be a deeper tone then the female but also, she stays in one place near the den so then you now have a near location as to where the pups are. They will give their yips and yipes as a greeting when they get together then she will leave to go and hunt and drink. So, then you go to the den area because you heard them and start to howl with one howl and who shows up, the male because he is home alone with the pups at this time of the day, she won't be back till around noon. I want to take the female, so then it's a matter of having the patience to let them be for the day and come back earlier the next morning to call her when dads still out hunting, I get closer to the den and give a lone howl either male or female will work for this. She will often just show up and sit watching at this time not saying a word but will look in your direction and then back at the den, you make the shot so now what do you do, you go to where she was sitting and get down to her level and look at where she was glancing so you too can see the den from her perspective. Or you set tight and wait for him to say he is coming home, then you answer back with your own howl so then you can then have him come in to run you out and shoot him as he gets close, and you bark him to a stop. If you get to the den at, say 8:00 she will be out feeding and drinking, and the male will do the same as she did so now you have the male instead of the female. If you are serious about controlling the coyotes in your area, then you will be taking coyote after they have no fur value from January till June as well as taking the dens with the pups. The USDA Wildlife Services as well as Collage Station Texas and Southern California Collage age department have done a lot of studying coyotes and their findings are that in order to just stay at even numbers you need to take about 75% of the year's pups.