Birds

What is the bottom side of the wing on a bird called?

More Questions from Birds
What is the common name of the North American bird Strix occidentalis?
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What are a bird's elongated feathers projecting from the upper body area, generally the neck or head?
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Which of these could be used to identify birds?
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What is the common name of the bird Streptoprocne semicollaris?
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What are the bird's short feathers overlying the median secondary coverts on the top of the wing?
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What is the lower most ridge on the lower mandible on a bird called?
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The last known member of what bird species died in 1914?
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Which of these is a small black and white bird from North America?
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