Really nice shots... The hooded down jackets and chairs would break up your outline and allow the little creatures a measure of security
BTW: This is the chair I use for a blind ("hide" in UK English). I clip some shade cloth onto the canopy with a slit in the front for the camera. The shade cloth is a dark green on which I have sprayed some spots of brown, black and lighter green as camouflage.
Basically, the canopy is for sun in my area but, I would imagine that it would also protect a photographer from snow. The next time I am out shooting with it, I will shoot an image and post it.