Very helpful! – Chirp! Bird Songs & Calls USA Review

Definitely helpful in learning process. Could add more mnemonics and also taxonomic orders - including showing that info in slideshow and quiz views. Also would be very helpful if you could have multiple lists (rather than just "all" and "favorites" - you could then more easily focus on difficult calls/songs, regions or families.
Review by Novice birder 789 on Chirp! Bird Songs & Calls USA.