Parvo is deadly to pups, most adult dogs will survive. It is also deadly to most wolves and coyotes because the don't have the antibodies to fight it. I suspect there is a good chance those dogs were dumped in Montana with parvo in the hopes they would transmit it to the local wolves.

More to add to the story -

https://www.newstimes.com/news/arti...schak-hunting-17815745.php?src=nthplocal

Since animals are people now, when will charges start being filed against "pet parents" for allowing their animals to run loose. A charge equivalent to endangerment of a child should be handed out to the owners since animals are people now.

Things were a lot simpler when the guy who owned the dogs would have just gone into the shooters garage, took his bow, ran it through a table saw a few times and brought back the pieces.