Cassell's Book of Birds, Part 2
Boring Books for Bedtime Readings to Help You Sleep
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The Backbone of a Bird
In the dorsal region, every means has been employed to prevent those movements which in the neck are so adventaciously permitted. splints of bone laid along the back materially add to its stability and strength. There are likewise two sets of ribs, one firmly lashed to the backbone, the other strongly attached to the sides of the sternum. The forelimb of a bird, although used for the purpose of flight, when stripped of the feathers and quills, that as we have already seen, form the extensive surface of the wing, will be found very much to resemble the human arm in its general arrangement.
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