Nice set Chris, I think number 3 here is your best but the Robin looks under exposed. I love the out of focus Robin in the first but the feeder distracts from another wise great image. Number 2 is nice but the bird is a bit small in the frame.
I agree with everyone else, No3 my fave too. Exposure wise – I think the BG is perfectly exposed the way it is, the Robin & snow look a bit underexposed and could probably benefit fron increase in “exposure” or “fill light” if they’re available and you shot RAW.