Spearow

When wild and untamed, a flock of Spearow Pokemon can be a frightening and deadly thing. In Ash and Pikachu's very first outing they fend off the savage birds, saving one another's lives and as a result, form their unbreakable friendship. Spearow eat insects in grassy areas and have to flap their short wings at high speeds to stay airborne.

First appearance: Episode 1—"Pokemon—I Choose You"