I'm with KYJohn and others: a Ruger Red Label 28 is a practical choice, especially if you intend to hunt birds with the gun, not just look at it or shoot clays. I've heard "they don't hold up to serious clay shooting." They DO hold up to the amount of shooting just about any American hunter is going to get in a lifetime. And the 28" barrel version swings better than many 28s.

(Oh, and a further novelty: it's made in the USA. That in itself makes it a "rare gun" these days!).