Birds have a waterproof covering of feathers.
Feathers are both watertight and airtight, as well as waterproof.
Birds have a special gland near their tail. The gland, called the uropygial gland or preen gland, produces oil that makes the bird’s feathers waterproof.
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The Somali Kori Bustard (Ardeotis kori struthiunculus) is the largest flying bird native to Africa.
The Somali Kori Bustard has a large head and long thin yellowish-white legs. It has mostly grey and brown feathers, finely patterned with black and white markings. Its neck is black and grey-brown with a black collar, whereas its chin and throat are white with thin black bars. It has a black crest. Above it pale yellow eyes is a white stripe. Its belly is white, and its tail has broad grey-brown bands. Its beak is light green. Its feet have three forward-facing toes.
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What does preen mean?
To preen means to clean.
A bird that preens is a bird cleaning its feathers.
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