Coyote or Coydog or ?

[Tamarack]

Beginning of the video:

 

[Turkey Creek]

Hard to say. There are definitely areas where melanistic coyotes are pretty common. With that said, the head looks a little too round for a pure coyote in my opinion.

 

[Tamarack]

This is the first time I've seen this one or anything like it. Maybe it'll stick around.