odd noises outside my house: 1?

As of recently I've been hearing strange noises outside my house- mind you I live in woodsy town, small town.

My back yard overlooks a small park of woods and every morning before I get ready for school I decompress before the day on the deck. The noises started sometime around September? its been going on for a while.

it doesn't sound like any deer I've heard or wild animal in the area. its like a crunching- not of leaves. like a wet, snapping sound. like when a dog plays with a bone treat or something. I stopped hanging out on the deck in the mornings because of it.

I've asked around and all my friends just say its nothing but I dunno. 

What could this sound be? ill be sure to update if i ever find out.