Creature: Flock of Ravens (CR 2)

Flock of Ravens (CR 2)
neutral
Diminutive Animal (Swarm)
Init: +2 Senses: normal
Listen +11 Spot +11

AC: 16 (+4 size, +2 dex)
HP: 13 (HD 3d8)
Resist: half damage from slashing and piercing
Fort: +3 Ref: +7 Will: +3
Weakness: swarm weaknesses

MV: 20 ft. or fly 60 (good)
Attack: Swarm (1d6)
Space / Reach: 10 ft / 0 ft
Base Attack: +2 Grapple: NA

Abilities: Str: 3 Dex: 15 Con: 10 Int: 2 Wis: 14 Cha: 4
SQ: half damage from slashing and piercing, low-light vision, swarm traits
SA: destraction, blinding
Feats: Alertness, Lightning Reflexes
Skills: listen +11, spot +11

A shreiking mass of black feathers, beaks, eyes and claws sweeps through the air.

Normally unagressive, magic or supernatural circumstances sometimes cause these flocks of birds to become extremely agressive and dangerous.

Combat
A raven swarm seeks to surround and attack any prey it encounters. The swarm deals 1d6 points of damage to any creature whose space it occupies at the end of its move.
Distraction (Ex): Any living creature that begins its turn with a swarm in its space must succeed on a DC 11 Fortitude save or be nauseated for 1 round. The save DC is Constitution-based.
Blinding (Ex): Any living creature damaged by a raven swarm may be permamently blinded unless they succeed at a DC 11 Fortitude save.

SWARM COMBAT
In order to attack, a single swarm moves into opponents’ spaces, which provokes an attack of opportunity. It can occupy the same space as a creature of any size, since it crawls all over its prey, but remains a creature with a 10-foot space. Swarms never make attacks of opportunity, but they can provoke attacks of opportunity.
Unlike other creatures with a 10-foot space, a swarm is shapeable. It can occupy any four contiguous squares, and it can squeeze through any space large enough to contain one of its component creatures.
Vulnerabilities of Swarms
Swarms are extremely difficult to fight with physical attacks. However, they have a few special vulnerabilities,
as follows:
A lit torch swung as an improvised weapon deals 1d3 points of fire damage per hit.
A weapon with a special ability such as flaming or frost deals its full energy damage with each hit, even if the weapon’s normal damage can’t affect the swarm.
A lit lantern can be used as a thrown weapon, dealing 1d4 points of fire damage to all creatures in squares adjacent to where it breaks.