The complete Pokemon RBY pokedex, part 2

Pokémon Name: Spearow
Type: Normal/Flying
Classification: Tiny Bird Pokemon
Pokédex Number: 021
Ability: Keen Eye
Dream World ability: Sniper – Critical hits inflict triple damage rather than double

Useful Attacks: Aerial Ace
Location Found:
Diamond/Pearl: Routes 225 and 226
Platinum: Route 225
D/P/P/HG/SS: All over the place, via Headbutting trees, Safari Zone, obtain from Webster (between Route 35 and Goldenrod City)
B/W: Breed Fearow

So, Spearow or Pidgey? There are positives to both choices, though Spearow begins with all-round lower stats. The plus side is that he evolves into his final phase, Fearow, much faster than Pidgey reaches his ultimate end. For your preferred bird, check the move list.

Evolution: To Fearow at 20