Green Chocobos are Medics. They are found in Yaschas Massif 100AF. Their stats are as follows:
Chain resistance: 90
Stagger point: 150.0%
Common drop: Chocobo Plume
Rare drop: Vitality Orb
Status imunities: Poison, Pain, Fog
Notes: May flee from battle, capable of restoring heath and inflicting Debrave.
As a pet, their racial attribute is Improved Cure, and are level one critters.