Trans Fluid - leaking down front driveshaft

[lks dcvn]

Got some time to move some stuff around in the garage last weekend...

I was sweeping some leaves and spotted a few drips of what appeared to be trans fluid spots under the front driveshaft - I put a small bucket under it and in the past week it has put a layer of fluid in the bottom of the bucket.

Any idea what this is - and could it be from just sitting all winter?

I can get a pic when I get home if that helps...