Tominal Tooth (notch in the beak used to brace seeds to hull easier, aids in ripping and tearing fruits and veg)
Cere + Nares (skin above the beak + nostrils) (breathing)
Rictal Bristles (for all intents and purposes, nose hairs) (supposed to prevent particles from getting in their eyes, in other species they help in a similar matter that a cat’s whiskers do, they’ve likely just recessed in parrot species as they’re less needed)
The Craniofacial Hinge (allows the top mandible to move, both the upper and lower portions of the beak can move unlike people!)
Choanal Slit (almost impossible to see in most parrots without restraint) (connects the nares to the trachea so they can breath through their nares instead of just through their mouths)