Question: Learn to identify different bird species.
Option 0: Get a book of birds in your area and go for a walk. Look around at the birds and compare to the pictures in your book. Do this often and you will soon become an expert.
Option 1: Get a book of birds in your area and sit by your living room window. Watch the birds and compare to the pictures in your book. Holler at them and try to learn their whistles. Do this often and you will soon become an expert.
Answer: 0