The ostrich is the world's biggest bird, and lays the world's largest egg. One female can lay up to 10 eggs. Because they have a communal nest, which is a small pit in the ground, a single ostrich nest can hold up to 30 eggs. Each egg weighs about 3 1/4 pounds! The dominant female incubates the eggs during the day, and the male sits on the eggs at night. Female ostriches are a dull brown color, and the males are black, with a white and orange tail. When breeding, a male ostrich's neck and legs become red.
Clue #1 I mate with up to three females, who lay their eggs in the same nest.
Clue #2 I weigh up to 350 pounds, and can run about 35 miles per hour.
Clue #3 I am a bird that doesn't fly.