It's A What?

I saw a furry looking thing in the yard yesterday hiding under the wood pile. I noticed the same different scent I've picked up in the yard over there as well. Each time I get close to them they disappear and actually chirp at me. George the Human says it's something called a marmot and that there is a family of four of them in the yard this year. No wonder my nose was going crazy the other day when I was wandering around in the yard. I was smelling not one but a bunch of them!