With thanks to the online wing collection of the Slater Museum of Natural History, University of Puget Sound for allowing the use of their wing photos.
With thanks, again, to Brian E. Small for providing the beautiful photos. You can see lots more at his website, and clicking any of his photos links there as well.
I have always wanted to learn more about birds, so I took this quiz for fun and got both right with intuitive guessing.
I think I’m gonna learn more. Thank you for your website