The Lloyd Library and Museum in Cincinnati has posted a wonderful little exhibit full of illustrations from ornithological illustrators. It isn't unusual to see images from Audubon or Catesby, but it's refreshing to see a panoply of images of a single species from a variety of popular observers and illustrators. I think it would be a wonderful use of internet-space to construct a database of changing bird images over time. Check out the feature on the passenger pigeon for a hint of what I'm imagining.
Be sure to check out the "Birds for Children" section too. After all, as one steadfast supporter of the Forum could certainly remind us, a key to understanding science in America is understanding how it came to be taught. Also, the pictures look neat.