Peryton

This creature has a stag’s body, a hawk’s wings and talons, and the head of a slavering wolf with a rack of sharp antlers on its brow.

Source: Pathfinder Bestiary 2

     Peryton combine the features of a stag, wolf, and great birds of prey. They are intelligent predators who prey on those weaker then themselves. Their delicacy is humanoids. Especially the taste of a still beating heart. Peryton are solitary creatures who hate even their own kind.

     In a rare instance a female will sometimes lead a strong family flock. The flock is usually composed of females with up six fledglings. This flock will attract an unpaired male who attacks hoping to make off with a female. Mating for the Peryton is brutal affair. Usually ending with the death of the male mate. Afterwards the female lays a single black egg and 7 months later it hatches.

Combat: Peryton are chaotic evil medium magical beast. Challenge Rating 4. They have the ability to fly and attack three times with a gore attack and two hooves.

-Horrific Critical: A Peryton gore attack threatens on a 18 - 20. If the Peryton slays a foe with a critical it can tear out the victims heart. All observers must make a DC 13 Fortitude save or be shaken for 1 round.

-Shadow Mark: As a free action the Peryton can mark a foe. With a ranged touch attack that is within 300ft.  If successful its shadow matches the shadow of the creature struck. It gains a +2 morale bonus on attack and damage rolls against that target. If the target is attacked by the Peryton while marked it must make a DC 13 Will save or become frightened for one round. 

-Misc Abilities: It has Damage Resistance 5/Magic, Darkvision, and Low-Light Vision.