Yeah, let's keep the eye gouge attack. We might also play up the effects of consuming all that fiendish and slaadi meat. Perhaps their attacks are treated as chaotic and evil-aligned, despite not being chaotic or evil themselves?
Sure, why not.
Looking at the Giant Raven, under the normal Large to Medium adjustments it would have Str 8, Dex 21, Con 9. That seems rather wonky. I don't mind the Strength, but the Dex seems way too high and the Con too low for a carrion eater. I'd prefer Str 8, Dex 19, Con 13 and add some SQ giving them a save bonus against disease.
I cut out the reference to the Swoop special attack from eyegouge.
Putting it all together would give something like this:
EDIT: I forgot the language ability, just added it in. :ENDEDIT
Executioner's Raven
Medium Magical Beast
Hit Dice: 2d10+2 (13 hp)
Initiative: +4
Speed: 10 ft. (2 squares), fly 70 ft. (average)
Armor Class: 16 (-1 size, +4 Dex, +3 natural), touch 13, flat-footed 12
Base Attack/Grapple: +2/+1
Attack: Bite +6 melee (1d6-1)
Full Attack: Bite +6 melee (1d6-1) and 2 claws +1 melee (1d3-1)
Space/Reach: 5 ft./5 ft.
Special Attacks: Eye gouge
Special Qualities: Darkvision 60 ft., evasion, low-light vision, resist disease
Saves: Fort +4, Ref +7, Will +1
Abilities: Str 8, Dex 19, Con 13, Int 4, Wis 12, Cha 10
Skills: 5
Feats: Flyby Attack, Weapon Finesse (B)
Environment: Sigil
Organization: Solitary, pair, or flock (2-20)
Challenge Rating:
1?
Treasure: None
Alignment: Always neutral
Advancement: 3 HD (Medium)
Level Adjustment:
+2? (cohort)
An enormous raven, almost as big as a human.
Executioner's ravens can speak Common, but rarely choose to do so.
Combat
Due to its habit of eating the flesh of fiends and slaadi, the natural attacks of an executioner's raven are both Chaotic and Evil aligned, though the bird itself is neutral and lacks those subtypes.
Eye Gouge (Ex): If an executioner's raven scores a critical hit with its bite attack, the target must succeed on a DC 15 Reflex save or lose the sight in one eye, becoming permanently dazzled (or blinded if they lose the use of all its eyes). A
remove blindness/deafness spell can heal the injury. The save DC is Dexterity based.