Something of note that creators like that of Mothbox might find interesting (if they didn't already know), Haikubox was awarded about $1m from the NSF: SBIR Phase II: Building a Nature Monitoring Network for Birds [0]. More about the awarding NSF "directorate" here [1].
I was using it today, and any day when there are birds around. It correctly identifies birds you can barely hear. It's become as useful as binoculars to me. A great free app.