Pikachu can use its electric-type moves to effectively counter Fearow, which is a flying and normal-type Pokemon. Electric-type moves are super effective against flying-type Pokemon, giving Pikachu an advantage in battle. Additionally, Pikachu can also learn various other moves like Quick Attack and Iron Tail, which can further help it in defeating Fearow. Therefore, Pikachu has the capability to protect itself against 5 Fearow.