The cockatrice resembles a mutated rooster or chicken with teeth and a bad temper. Often it occurs early in the game and is not very powerful. In FF4, as a summon, it utilizes a paralyzing attack.
-Perilisk (NA) / Pyrolisk (JP)
-Cockatrice (palette swap of basilisk)
-Cockataur (NA) / Cockatrice (JP)
-Cockatolis (NA) / Cockatrice (JP)
-Cockatrice (many varieties)
Cockatrices play a much larger role in FF12 than just a monster. They're farm animals in Giza and are the subject of a sidequest whereby you have to bring them back from all over the world; you can even talk to them once you've obtained a particular item. They speak with Cockney accents.
CP: Lo, the mighty cockatrice, proud-feathered sphere, known as much for its ill humor as its dire rotundity. The great naturalist Merlose once remarked: "...live they in the sands and other arid climes, whereabouts they moveth in a rolling fashion most particular. Subsist they principally on small creatures and vermin &c., for the incapacitation of which they disgorge a sticky saliva, thence devouring captured morsels only when appetite moves them. Swollen sacs containing airs are found under the surface of the skin, and when inflated, these lifting the creature upon drafts unseen, whence to espy suitable prey.
-Stoney Roost (NA) / Cockatrice (JP)
-Cocatoris (NA) / Cockatrice (JP)
These roly-poly birds are based off the FF12 models. There also exist giant Crushatrices like Klesta, the first battle you enter.