What's the difference between unfledged and unvaned?

Unfledged

Definition:

• (a.) Not fledged; not feathered; hence, not fully developed; immature.

Example Sentences:

• (1) From the moment of hatching the unfledged chicks are brooded by their parents until they are able to maintain their own body temperature.
• (2) The communities developed rapidly in unfledged gulls and the diversity parameters were of similar magnitude in immature and adult birds.

Unvaned

Definition:

Example Sentences: