Summary:
- About 10,000 bird species belong to 29 different orders within the class Aves.
- The tropics are home to the greatest biodiversity of birds.
- Birds can be carnivores, herbivores, or generalists.
- The lifestyle of the bird can affect what it looks like.
- You can predict how the beaks and feet of birds will look depending on where they live and what type of food they eat.
- The size and shape of the beak is related to the food the bird eats and can vary greatly among different birds.