Friday, August 19, 2011

Pneumatic bones

Image © blogs.thatpetplace.com
Weight is the largest obstacle that all birds must overcome to be able to fly. Budgies have special bones that are hollow and contribute to the bird being light enough to fly. These bones are called pneumatic bones and contain large air-filled sacs that are involved with the respiratory cycle during flight. This is part of the reason why budgies fly so smoothly.

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