at level 38
A taillow can evolve into swellow but a swellow can't evolve.
Swellow cannot evolve, as it has already reached its final form.
taillow
swellow doesn't evolve!
Go to Google and type in the Pokemon you want to know about. You'll get a boat load of information-- I reccommend Bulbapedia. FYI-- Swellow does not evolve. If you meant Tailow evolving to Swellow, the level's 22.
The Pokemon Swellow cannot evolve.
I know Taillow evolves to Swellow but after that Swellow won't be able to evolve.Answer Swellow is one of the few Pokemon who only has one evoltion. (from Taillow to Swellow)
swellow
at level 22.
It evolves into swellow at level 22
tailow evolves on level 22 to swellow which if people think he can evolve he cant so stop trying ya dingbats
At level 22 it evolves into Swellow.