Skirr (CR 7)

Huge Undead
Alignment: Always neutral evil
Initiative: +2 (Dex); Senses: darkvision 60 ft., Listen +9, and Spot +9
Languages: No language

AC: 22 (-2 size, +2 Dex, +12 natural), touch 10, flat-footed 20
Hit Dice: 9d12 (58 hp)
Fort +11, Ref +10, Will +6
Speed: 20 ft., fly 50 ft. (poor)
Space: 15 ft./10 ft.
Base Attack +4; Grapple +20
Attack: Bite +11 melee
Full Attack: Bite +11 melee and 2 claws +9 melee
Damage: Bite 2d8+8, Claw 2d6+4
Special Attacks/Actions: Improved grab
Abilities: Str 22, Dex 15, Con -, Int 2, Wis 13, Cha 14
Special Qualities: diet dependent, undead traits
Feats: Alertness; Flyby Attack; Lightning Reflexes; Multiattack; Weapon Focus (bite)
Skills: Listen +9 and Spot +9
Advancement: 10-16 HD (Huge); 17-27 HD (Gargantuan)
Climate/Terrain: Cold hills
Organization: Solitary or pair
Treasure: Standard

Source: Libris Mortis

A faint whirring sound and the stench of death precedes a great shape scudding through the air. The creature has a humanoid form with the skull of a long-toothed bull. Its upper arms are great wings, ad its lower legs end in cruel, clawed talons. No skin or fur can be seen beneath the dingy gray funerary wrappings that cover the entire creature like a mummy.

Skirrs are predators that hunt the edges of necropolises, great expanses of deadly swamps, deserts, or other places where victims might be found alone, hurt, and pressed by dangers from directions other than the sky. That's when skirrs swoop in to attack.

Skirrs measure, wingtip-to-wingtip, 50 feet or more, and weigh about 20,000 pounds.

Skirrs know no languages.