It evolves into Swellow at level 22
Taillow evolves at level 22.
Train Taillow to level 22
Taillow evolves at Level 22.
A Taillow will evolve arounde level 22.
at level 22.
level 22
Level 23. 
Taillow evolves into Swellow at level 22 and does not evolve further. Swellow should always know Fly and Steel Wing.
level 22
At level 22 it evolves into Swellow.
i think at level 32
level 22