Where to catch, #0017
Pidgeotto in Red and Green (Japan): 3 places, levels 28 to 32
3 encounters by area
Places
Route 14, Route 15 and Sea Route 21
Other games
Also found in 8 other games
Red and BlueYellowGold and SilverCrystalXDFireRed and LeafGreenHeartGold and SoulSilverLet's Go, Pikachu and Eevee