Part field guide, part science book, Arnold’s volume uses pictures and text to explain what makes birds’ anatomy uniquely capable of flight. The illustrations include beautiful paintings of the birds, clear anatomical drawings, and detailed scientific diagrams. Specific technical aspects of flight are well explained, particularly the way different types of feathers enable takeoff, hovering, steering, and landing. Over 30 different birds are labeled, and a brief glossary defines new terms. (Ages 7–11)