Please add features

This app is fantastic! I have several other apps that I use to learn bird songs, but this is the only one where you can easily select the birds you want to drill and only see/hear those. The random quizzes built in are less useful; Im not likely to confuse a golden eagles call with a Bewicks wren. Also, quizzing me on birds that live a thousand miles away is fun but only good for entertainment. But they are fun for killing time and introducing new species.

Please add:
Saved quizzes (so I dont have to go through the entire list each time).
Quizzing just within a family, such as warblers.
Soundalikes by region (birds that sound the same that are found in the same location).

Fb97e4ad about Chirp! Bird Songs & Calls USA