Note: This app appears to only be available in UK iTunes App Store.
From The Telegraph:
A new app that can identify the songs of 220 British birds is launched today.
Warblr, has been developed by two scientists, Florence Wilkinson and Dan Stowell, using a grant from Queen Mary University of London’s Innovation Fund.
The app which costs £3.99 works in a similar way to Shazam, the music app which identifies songs playing from a huge database of tracks.
Users make a recording with their mobile device, Warblr then provides a list of the most likely species responsible for the birdsong, along with information about each bird.
Read the Complete Article
View Demo (via Sky News, YouTube)
See Also: Available in the U.S. App Store (We have not used the app): Bird Song Id
See Also: In 2011 We Posted About a Similar Sounding App Named WeBird
To the best of our knowledge this app never became publicly available.