Read the story and answer the questions to test your comprehension.
The nightingale is the national bird of Iran and Bangladesh. They sing primarily at night and at dawn. For centuries, people thought it was the female bird singing, it's actually the male trying to attract his mate. If he sings at night, he's looking for a lady. If he's singing in the morning, he's defending his territory. The nightingale has one of the most impressive songs in the world.