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Corvin sign languages mainly use tongue, wings, beaks, and feet. Deaf corvins are almost always congenitally deaf; it is very rare for a corvin to become deaf later in life, as avian cochleae are self-repairing. | Corvin sign languages mainly use tongue, wings, beaks, and feet. Deaf corvins are almost always congenitally deaf; it is very rare for a corvin to become deaf later in life, as avian cochleae are self-repairing. | ||
==== | ==== Corvin-specific grammaticalization paths ==== | ||
*feet/beak/tongue: manipulate, handy, dextrous | *feet/beak/tongue: manipulate, handy, dextrous | ||
*throat: language, speaking | *throat: language, speaking |
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