Big Pecks — Pokémon Ability

Protects against Defense drops.

Effect notes

This Pokémon's Defense cannot be lowered by other Pokémon. This Pokémon can still be passed negative Defense modifiers through Heart Swap or Guard Swap.

In-game descriptions by version

black white	Protects the Pokémon from Defense-lowering attacks.
black 2 white 2	Protects the Pokémon from Defense-lowering attacks.
x y	Protects the Pokémon from Defense-lowering attacks.
omega ruby alpha sapphire	Protects the Pokémon from Defense-lowering attacks.
sun moon	Protects the Pokémon from Defense-lowering effects.
ultra sun ultra moon	Protects the Pokémon from Defense-lowering effects.
lets go pikachu lets go eevee	Protects the Pokémon from Defense-lowering effects.
sword shield	Protects the Pokémon from Defense-lowering effects.
scarlet violet	Prevents the Pokémon from having its Defense stat lowered.

Pokémon with this ability

pidgey (hidden ability)
pidgeotto (hidden ability)
pidgeot (hidden ability)
chatot (hidden ability)
pidove
tranquill
unfezant
ducklett
swanna
vullaby
mandibuzz
fletchling
rookidee (hidden ability)
corvisquire (hidden ability)
bombirdier