Fearow, the Beak Pokémon. The evolved form of Spearow. Its large, powerful wings allow it to fly for an entire day. The crushing power of its beak is tremendous.
– Ash’s Pokedex
I’m not sure why Fearow (and Spearow) exists, because Gen I already had the normal birds in the Pidgey family. Anyway, I remember using Fearow for my Fly HM slave in FireRed (because I didn’t want to give Fly to Charizard) and Platinum.
Stat-wise, it has good Attack and Speed. As of Gen V, it’s one of the few Pokemon to learn Drill Peck (a solid high-powered physical Flying move without negative effects) by level-up. I remember I wanted Drill Peck on my Skarmory, and had to breed with a Fearow to get it. In Gen V, Fearow can also learn Drill Run, a Ground type move. by level-up (probably because it’s the Drill Pokemon), making Fearow one of the few Flying (but not Ground) types to learn a Ground type move by level.