I heard something screamin like a banshee outside my house. It freaked my dogs out.

fox, yo. they are coordinating their positions relative to eachother

Dogman probably.

I'm guessing - cats having sex

I played that vid of the foxes screaming and my dog went nuts LOL ... we have lots of foxes around here - so he knew that sound ... got goats too - but never heard one scream like that ... but don't doubt that they can

coyotes