Waste of time
Downloaded this to look at different bird calls. When you first open the app, it asks you to select which country - I selected mine, it then shows you a 30 second video ad (which you cant skip) for a completely unrelated app.
Once youre past giving them money for the 30 second ad, 80% of the bird calls are "locked" and require an in app purchase.
Absolute waste of my time.
Thao D92 about
Bird Songs - Bird Call & Guide, v2.0