Bird+Bones

=Add any information you learn about bird bones to this page.= ====We learned that flying bird bones are hollow but a penguin's bones are solid. I think penguins have solid bones because they swim alot and then waves hit the penguins, so if they had hollow bones they would break their bones, then become extinct. I think they have solid bones because they live in cold water.==== Bird bones are very very very very very very very very very very very solid for penguins. Did you know that the wrist of a bird is under the thumb?Did you know bird bones are hollow? they are hollow