LogFAQs > #932169158

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TopicIm amazed that birds can keep warm with just their feathers
MabusIncarnate
12/28/19 6:13:14 PM
#4:


They have an oil gland by their tail feathers that they rub with their beaks and distribute across their feathers. Not only does it make them waterproof, but it also creates a stronger seal that keeps wind out and holds body heat in.

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