Try to memorize the name and song of various common bird species.
Try to spot out the characteristic traits (color of feathers, size of beak, tone range, tune, etc). They will make your learning easier.
What it trains
To do this in an efficient manner, and since there are numerous items that are quite similar, you should set up a memorization technique relying on relevant hints. If, like many of us, you’re not quite used to work on your auditory memory, you will progress rapidly. And what a pleasure it is to hear all these birds!
A predefined set of levels has been specially selected to ensure an easy start and grant a regular progression.