Firered and leafgreen can't catch or see any hoenn Pokemon all must be traded to you from ruby, sapphire or emerald.
swellow doesn't evolve!
Taillow Swellow Wingull Pelipper Skarmory(Maybe) Swablu Altaria
you make egg with swellow
A taillow can evolve into swellow but a swellow can't 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)
Northwest of rustboro city theres a surf spot and a secret route theres some grass there as well you can find swellow here and jigglypuff.
You find Sneasle in the Ice Zone after starting to decorate the ice tree for Kirlia. (Talk to Kirlia, then to Delibird. He will give you presents for becoming certain pokemons friends.) hope this helps!
Swellow cant evolve
Swellow is not capable of evolving into anything due to Swellow being a fully evolved Pokémon.
You cant find it in Firered only leafgreen.
While it was possible to find missingno. in Red version, it is not possible to find it in FireRed.
Swellow cannot evolve, as it has already reached its final form.