Immature, undeveloped. Of a bird: immature. Obsolete.
Of a bird: That is still with its mother. Now chiefly in sucking dove, echoed from Shaks. (see quot. 1600); also attributive.
Subcategories:
— hatched with feathers (2)
— hatched without feathers (1)
— unfledged or not fully fledged (12)
— fledged (6)
— bearing helpless young (2)
— bearing well-developed young (3)