bird bones are smaller and light weight, and this is why they can fly easier. if a mammal tried to fly, with its thick bones, it might wind up with shattered ones
bird bones are lighter
Bird bones because feathers are very light and the bones just depend on the type of bird.
Bird Bones in the Bughouse was created in 2004-10.
regular bird bones
what is the function of a bird cell
The kiwi is a bird and has a spine (backbone).
Human bones are thicker and denser; bird bones are thinner, hollow and mean less weight on the bird.
Birds do have bones.
No, bird bones are hollow.
there are bones for birds and my bird LOVES them!
In order for the bird to be as light as possible for flight. This "hollowness" reduces their body weight by about 5%, depending on what kind of bird it is, in contrast to their would-be weight if their bones were not hollow.