**Engineered by evolution to thrive in the wild **

**Engineered by evolution to thrive in the wild **

** A tiny textbook to learn on your own** *How Birds Work goes beyond the typical field guide to show us not only what birds look like but why *. Why do many owls have asymmetrical ear openings? (Hint: It helps them pinpoint prey; see page 40.) And why does the Grey Heron rest on one leg at a time? (Hint: Not because it's tired; see page 66 ) Birds boast a spectacular array of adaptations suited to their incredibly diverse diets and habitats. In this in-depth handbook, discover the ways they're even more astounding than you know--inside and out. Detailed analysis and illustrations illuminate: - Skeleton

• Muscles

• Circulation

• Digestion

• Respiration

• Reproduction

• Feathers

• Colors and Patterns

• And much, much more