I love this. It used to work like magic but something happened and now it barely recognizes birds for me. Only if they are really close. Anyone else? Maybe my hardware is failing? I also travelled and loaded other packs and wonder if I messed up my DB.
A few months ago, there was an update that made the detection much stricter. I believe this was in part to detract people from posting false positives of rare birds to eBird.
Could be an issue with your mic (clogged? weak connection?). I just installed and used it and the app works perfectly for me and picks up birds that are calling faintly and in the distance.
I noticed it had a hard time when there was a consistent background noise going. If my home's AC is running, it can only ID the highest pitched birds and will fail to detect the lower pitched calls.
I've actually started setting my AC to keep the temp a little higher in the early mornings so it doesn't run as much while I'm outside.