Your program really looks impressive (already downloaded it a few days ago).
I will start using it when the nights are getting warmer here, ha, ha.
I'm working on another program for birding, will take a while before it has all the functionality that I have in mind (with pictures).
This translator only contains birds that are seen in Europe.
You can download the worldlists of birds and other species at: Observado.org -> Overviews -> Downloads
On this site you can enter your sightings as well and you are more than welcome to do so (no sightings from Okinawa yet )
Must be a beautiful area for birding where you live and I am looking forward to see your picture of the Chinese bulbul.