Good app European Goldfinch and European Greenfinch seem to be mixed up. Sounds don't play if the byte finishes until you exit out of the bird and go back in. Otherwise very user friendly, useful app.
Great content, however some incorrect eg. White Capped Albatross' conservation status. Some sounds are noisy and contaminated with other birds, humans, or streams etc. Sounds often won't play. Interface could use some polish. Doesn't display well on small screens like an Xperia Acro S.
Great app but can't download files onto external SD card and tech support didn't answer my question about it. Will upgrade my review when I get an answer . . .