Birds

What is the lower most ridge on the lower mandible on a bird called?

More Questions from Birds
What is the common name of the bird Heliomaster longirostris?
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What is the area of contrasting color on the breast of the bird?
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What is the common name of the bird Polyplectron inopinatum?
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What is the common name of the bird Abeillia abeillei?
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What animal is a water bird that is often raised on farms?
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Which of these are large birds that nest on the ground?
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Also called the occiput, what is the back portion of a bird's crown?
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What is the state bird of New Mexico?
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