I'm doing some of the Bird Academy courses, like the course on identifying waterfowl. It gave me the impression that it's possible to buy some pamphlet-like guides that just show, say, ducks. For example, how to ID ducks based on where the white is or what the silhouette looks like.
Does anyone know, are these mini guides something I can buy somewhere on this website? I can't find them on the site.
Or else, if not through Cornell's Bird Academy, where do I get them?
Thanks so much!
--Celia