What's That Sound?

Last summer was my first summer in the States, and the hubs informed me that should I hear a horrifying cry from the far end of our yard, I shouldn't be alarmed. Why? Because it would be the sounds of red foxes... erm... how to put this... making more red foxes? Lovely.

Tonight I'm in my studio, hubs is asleep, and I hear what sounds like someone being killed. A lot. Well that's what I thought initially. Then I remembered what he told me.

Eww.

Picture from Wikipedia. Because I'm not about to go take a picture myself.