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Uropygial Gland: The Science of Bird Preening and Feather Maintenance

Uropygial Gland: The Science of Bird Preening and Feather Maintenance Most birds possess a specialized organ known as the uropygial gland, more commonly referred to as the preen gland or ...

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Bird Preening: The Essential Science of Plumage Maintenance

Bird Preening: The Essential Science of Plumage Maintenance For a bird, feathers are far more than just ornaments. They are critical biological tools that provide insulation, waterproofin...

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