Charlie I must agree with you about the rare chance that this could be a coy-dog but the time that we had the coy-dogs running around here it was only one litter and if my memory serves me right I think there was six of them total. We got all of them after three months of chasing them with hounds but we did get them all. The male that bred this female was a Australian Sheperd. There was a black one, two red ones, two blue merle and a very large red and gray one. The last one was the hardest to get but through persistence and good work by my beagle it was finally taken down also. That was six years ago and even though I took the dog out that bred this female coyote we haven't had any around since. It was rare indeed but it did still happen, I remember that the coyote numbers were out of control that year and maybe not enough boys around to get the job done. Anyway I will stick to my prediction and say coy-dog, as far as the mount that someone showed I would also say coy-dog because coyotes hardly get the white patch on there throat like that one did. But that is just my opinion.