Where did you see an emu? I didn't think they were native to Pennsylvania.
I like the length of the list, but I think they should remove some songs and calls.
You're completely right about the binder, however. Two years ago I did Amphibians with a binder, and last year fossils (urgh, conflicts, so not this year) and the binder was a great resource. I didn't need it for fossils, but it was a good backup. I want one for birds.
The National test integrated a lot of ornithology that wasn't identification, so that was good. It had questions on anatomy, which I liked. However, it was unfortunately pretty easy, with very bad vocalizations given.
Either way, 6th place isn't something to sniff at.
Brown University 2017
2009 B Division National Ecology Champion
4 time National Medalist
Farewell Science Olympiad. We will meet again.