Spearow is a brown avian Pokémon that is very small. It has rough, brown plumage on its head with a short, hooked beak. Spearow's underside is beige with two thin stripes. Spearow's light pink feet have three talons, and its wings are a pinkish red with lighter edges. Spearow's back is black, and it has three brown tail feathers.
Although inept at other aspects of its flying, such as height and distance, Spearow is still capable of flying quickly to protect its territory. However, it must flap its wings at high speeds to stay aloft. Spearow's loud shrieks can be heard over half a mile away, and are used to warn other of its kind of danger. The anime has shown that Spearow sees in black and white and will chase its foes in a large flock. Spearow is usually found in desolate wastelands and fields, where it hunts for insects.