If you're looking for an English adjective derived from Latin, it's "avian", from avis, "bird".
In Latin itself, the adjective is actually aviarius(-a, -um).
The Latin name for bird is "Aves."
Free as a bird
The Latin word avis, meaning "bird".
The Latin Name for Black bird is, Turdus merula.
The term "barn owl" is the common name for this bird. "Tyto alba" is the Latin name. Since many people might call the same bird by different common names, the Latin name ensures there is no confusion as to what bird is being discussed.
Pica Pica is the latin name for magpie
bird
Bird
Liberum Avis Liberum - "to be free" Avis - "bird" Literally, "free bird".
Roadrunner
Avis.
"Avi"