Super job on the blue jay. I see a lot of them around here in Florida but they haul-ass as soon as they see humans. I haven't gotten anywhere near the detail you did with your capture.
I was unfamiliar with your c2100UZ camera so I looked it up. They listed it as a 2.1 megapixel camera??? I guess it is an over-achiever camera like my old Canon Powershot Pro 90 (3.2 megapixels) That one's pictures seem cleaner and enlarge better than my Panasonic Lumix FZ-10 (4 megapixels) so I guess you can't judge a camera just on that spec alone.
Of course the lion's share of the credit should go to the photographer.
Snowrdr crisp and very nice colours. That Cannon does seem to have the edge over my FZ20 for nicely bright & pleasing images. It looks to me that the US robins you, Scatamouche & XOO have seen are very different to those we have here in the UK. Unfortunately I only have a book of British birds so can't look them up.