Question

have hollow bones to reduce their body weight​

Answer 1

Answer:

Like all birds, whooping cranes have hollow bones that make their bodies lighter. With hollow bones a bird can fly very long distances without getting worn out from carrying its own weight. ... The struts within a bird's bones are much like the struts that support the hollow wings of airplanes.

Answer 2

Answer:

like all birds whooping crane have hollow bones

Explanation:

hope it helps you