Think of Eastern coyote calling like a STING.. You know you do things to people and you make them drop their guard and they do things that normally they would not do..This goes on in life all the time... Best example but no intentions....What if someone said something about your family? Or better yet someone a neighbor started throwing things into your yard. Just say you looked out your window and you see the neighbor come on to your property and pour old oil from his car all over you lawn.. Now what would your reaction be to that? it would upset you...Your neighbor is yanking your chain by doing things to YOUR TURF!!
When other coyotes come into the areas occupied by a pack of coyotes... The same thing happens...The Alpha male and female don't take kind to it...So what you need to do is simulate that you are that infringing coyote . You have come into the coyotes home range... Your going to sires his females, kill their young coyotes, take their food... Coyotes mammals just like us want to protect their turf!!!! So by making them think your another coyote you get them so upset that eventually they come in to investigate...And to whoop Butt!!
Now what you do to do this is: To do coyote vocalization but then keep quiet for long periods of time.. Now it the quiet time that works on the coyote alphas in the pack... They just heard a coyote howl twice.. They hear this and IMO they are starting to think "WHAT THE


Then on the 2ND vocalization maybe about 8 minutes later they hear a pup and or a KIYI fight...Now this even gets them whooped...You could throw in a minute of rabbit squalls and then 8 more minutes of silence.. So here you are: My howl just let the coyotes that I am a coyote and I am now on their turf. The kiyi and the pup makes them think I want to hurt the pups, Then they hear the food sound and they think I am going to take their food. Then I would do a coyote challenge now this is the one that say...I the simulated coyote want to fight and take their lands, females, pups, and food. Surely you can see strategy here? Also as Scott pointed out The Gray Fox Pup...Coyotes hate gray fox probably because they would eat the coyote pups.. So when I speak of yanking the chain this is what I am trying to get everyone to think about?
When the coyotes come into fight...they will not howl they will just show up...Maybe about the 35 minute to the 45 minute mark in your calling scenario.. The great Randy Anderson is the one who told me to do this to call our Eastern Pa coyotes and he was right!!
Here in Pa the important thing is finding the just perfect place to set up to nail them before they smell you when they come to the call.. I mean not the calling, the Yanking!!!