annotine

from The Century Dictionary.

• In ornithology, one year old.
• noun A bird which is one year old, or which has molted once.
• noun A tree that bears fruit of two years at the same time, the fruit of the past year persisting, while that of the present year is growing.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A bird one year old, or that has once molted.