Why Birds Do That, by Willow Creek Press. There's little question that a life without birds around would be boring indeed. Birds provide endless fascination and entertainment for millions of people, whether we live in the city or in the country. From their evocative songs, to their sometimes complex and even comical behavior, the observation of birds not only enriches our lives, but poses many questions. For instance, why do birds sing, and why do they seem to sing mostly in the morning. Why do males of many species sport such bright colors? Why do some birds hatch naked, while others come with thick and fluffy coats of down? Why Birds Do That answers many of the common, and some not-so-common, questions about the birds that share our world.