Spearow evolves into Fearow starting at level 20 in the main Pokémon games.

Quick Scoop

  • In the core series games (like Red/Blue, FireRed/LeafGreen, etc.), Spearow evolves when it reaches level 20.
  • The evolution is a simple level-up evolution: no stones, trades, or special conditions needed.
  • In spin‑offs like Pokémon GO, Spearow evolves to Fearow by using 50 Spearow Candy , but there are no “levels” there.

So if you’re playing a classic mainline game, just keep battling and leveling Spearow until level 20 and it will evolve into Fearow.🕊️

TL;DR: Spearow evolves into Fearow at level 20 in main games, or with 50 Candy in Pokémon GO.

Information gathered from public forums or data available on the internet and portrayed here.