Birds

What is the uppermost central ridge of the upper mandible on a bird called?

More Questions from Birds
What birds return to San Juan Capistrano shortly before spring begins each year?
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What small wingless jumping insect feeds on the blood of mammals and birds?
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In the "Book of Genesis", what was the first bird sent out from Noah's Ark?
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What is the common name of the bird Syrmaticus ellioti?
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Which country's flag was adopted in 1871 and features the quetzal bird, a symbol of liberty?
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What is the body covering of birds called?
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What is the common name of the bird Bubulcus ibis?
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What bird is the official state bird of more states than any other?
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