An introduction to bird flight which includes a discussion of bird anatomy, feathers, and air currents and a comparison with airplane flight.
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An introduction to bird flight which includes a discussion of bird anatomy, feathers, and air currents and a comparison with airplane flight.
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Seller's Description:
Il by Lorence F. Bjorklund. VG in VG DJ. DJ chipped, creased ft top. "A bird's wings are made up of millions of parts that twist and bend when the wings flap. "
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Seller's Description:
Fair. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear. It may also be ex-library or without dustjacket. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear. It may also be ex-library or without dustjacket.
