Possible interacting vocalizations heard by hunter near Hyrum witnessed in Cache County, Utah

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I was hunting in area that is a isolated platou surrounded by canyons with roads in the bottom At the time you could drive aways inthe area .Now it is closed except for summer use, The terrain is made of mahoganise, quakies,ceders sagebrush and pines. I had hiked about 3 miles from my truck circling the platous ridge dropping about 50' down below the ridge into the tops of the canyons al the time I was bugleing for elk and calling for cyotes. I was useing my my hands to make sort of adeep whistle type howl kind like blowing over the top of a bottle yet much louder and shriller. you can do this by cupping your hands and blowing across your thumbs.I did every so often listening for a response. well in the distance I heard something so I copied it .I then heard another reponse .well what ever it did ,I would respond, and so forth. Well the responses got closer and closer they were coming up the mountain to where I was. there were three of them as far as I could tell They stopped about 30y...