Their almost incorporeal essence has endowed them with various resistances:

Damage Resistances: Lightning, Thunder; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities: Poison
Condition Immunities: Exhaustion, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained, Unconscious

His connection with the air increases his senses, giving him an extraordinary awareness of what surrounds him, giving him the talent Alert.

Thanks to your ties with the Elementals of the air you are able to speak, write and understand, Common, Primal, Auran.

The Caligos take age into account in years like humans, and love celebrating their birthday with sumptuous dinners and loved ones.
Caligos are sexually mature from birth, their lifespan is unknown.

Just like their human side, the Caligos cover any alignment.

Caligos range from 5 feet up to 8 feet

Your base walking speed is 30 feet and your flight speed is 30 feet.

Thanks to your birth, you have retained darkvision. You can see in dim light within 60 feet of you as if it were bright light and in darkness as if it were dim light. You cannot distinguish color in the dark, only shades of gray.

Your Charisma score increases by 2, and your Dexterity score increases by 2.