Guessing eastern coyote by your still and some research. The ear appearing rounded is striking but it’s hard to tell from the still. Ear shape varies slightly in images I’ve been looking at. It’s too early for pups but could be a yearling. This could be a solitary individual, not a family group necessarily. Are your squirrels active now? Ours are sleeping. They do eat mice though, and in the lean part of winter (now) they’re looking for garbage, carrion and failing deer. They probably smell the chickens and the feed, and your neighbors may have trash about, or are feeding wild birds (that also attracts mice). I’m afraid they are successful in suburbia and even cities, but they control deer, rats, raccoons and other urban / suburban animals. They will go for small domestic animals if they judge it possible.