Birds

On birds, what is the hinge where the mandibles meet?

More Questions from Birds
Which bird can fly backwards?
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What is the common name of the bird Syrmaticus ellioti?
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A long-tailed songbird with a red crown is called what?
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What is the common name of the bird Mitu salvini?
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What is the common name of the bird Heliangelus regalis?
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What is the state bird of Massachusetts?
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Approximately when did the Cockapoo become popular in the United States?
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What animal is a small seed-eating bird from North America?
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