Compatibility Form of 巢

It preserves a source code, not a separate meaning.

Taiwan expanded the CNS 11643 character standard in 1992 to include rare characters and variants. Unicode keeps entries from selected parts of it so text can be converted into Unicode and back without losing its source code. The mapped character 巢 is much older: oracle-bone inscriptions—writing carved on animal bones or turtle shells—show a nest in a tree, first as part of another character. Later Chinese texts also use 巢 as a verb, “to nest,” and for an animal’s or enemy’s lair.