Staralili

Diamond +2: They flock in great numbers. Though small, they flap their wings with great power.

Pearl: Usually with a large flock, it is barely noticeable when alone. Its cries are very strident.

Platinum +4: Because they are weak individually, they form groups. However, they bicker if the group grows too big.

HeartGold +3: They flock around mountains and fields, chasing after bug Pokémon. Their singing is noisy and annoying.

Legends: Arceus: They live in the fields and mountains, gathering in large flocks. Their cries are quite obnoxious. Though small, their wings are strong—a strike from them leaves pain that persists for a week.