March 27 update: Looks like our poor fellow has Finch conjunctivitis. Not fatal, but very contagious. BirdCouple's feeders are down for now.... Thanks to everyone who helped ID the problem.
This poor little fellow showed up at our feeder this morning. It looks to me like an American Goldfinch, but something's wrong. Is it just a case of aberrent plumage? Is the bird ill? Is it just a flegdling?
Please post comments or ideas!
Here are two more photos: