Strong Looking Yellow Beak Of Bird In Beijing Market; Its Most Striking Feature

The yellow beak bird did not appear to be a song bird but it certainly had a beak that looked very strong. With such a large yellow beak it would seem to be capable of cracking shells with ease, and propably capable of defending itself against attack by other birds. Even the small beak of a sparrow has the power to give your finger a painful nip. The strong looking yellow beak of the bird we saw seemed to be a weapon not to be trifled with!

Another yellow beak bird in a cage in the market seemed to be a big attraction to a parrot with a red beak. Perhaps it was the yellow beak of the bird that had attracted the parrot, but no response was made to the parrot by the yellow beak bird!

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*** Beaks vary significantly in size and shape from species to species. The beak is composed of an upper jaw, called the maxilla, and a lower jaw, called the mandible. The jaw is made of bone, typically hollow or porous to conserve weight for flying. The outside surface of the beak is covered by a thin horny sheath of keratin called the rhamphotheca. Between the hard outer layer and the bone is a vascular layer containing blood vessels and nerve endings. The rhamphotheca can includes knob, which is found above the beak of some swans, such as the Mute Swan, and some domesticated Chinese geese (pictured).
SRC: Wikipedia.Org ***