Razorwing (CR 4)

Large Animal (Psionic)
Alignment: Always neutral
Initiative: +4 (Dex); Senses: low-light vision, Listen +4, and Spot +4

AC: 17 (-1 size, +4 Dex, +4 natural), touch 13, flat-footed 13
Hit Dice: 4d8+20 (38 hp)
Fort +9, Ref +8, Will +3
Speed: 20 ft., fly 40 ft. (average)
Space: 10 ft./5 ft.
Base Attack +3; Grapple +10
Attack: Wing +5 melee
Full Attack: 2 wings +5 melee and bite +0 melee
Damage: Wing 1d6+3, bite 1d8+1
Special Attacks/Actions: Psi-like abilities
Abilities: Str 17, Dex 18, Con 20, Int 2, Wis 14, Cha 12
Special Qualities: Psionic flight
Feats: Alertness; Flyby Attack
Skills: Hide +10, Listen +4, Move Silently +9, and Spot +4
Advancement: 5-12 HD (Large)
Climate/Terrain: Warm deserts (Athas)
Organization: Solitary or flock (2-8)
Treasure/Possessions: None

Source: Dungeon #111

Psi-Like Abilities (Sp): At will - create sound, detect psionics; 3/day - conceal thoughts. Manifester level 4th.

Psionic Flight (Ex): Razorwings use psionic energy to assist the lift provided by their wings. If a razorwing can't use its psionics (because it is in a null psionics field or similar effect), it can no longer ascend and must descend by at least 5 feet per round.

Skills: Razorwing skin changes color to match the surroundings, giving them a +8 racial bonus on Hide checks.

True to their names, razorwings dive at their prey and slash them with the sharp bones on their wings.