A screeching cawing whirlwind of buffeting wings, clawing talons and pecking beaks.
AC 16, touch 14, flat-footed 14 (+2 Dex, +2 natural, +2 size)
Str 2, Dex 15, Con —, Int 2, Wis 15, Cha 12
Any living creature damaged by a raven swarm must succeed on a DC 18 Reflex save or be blinded as the swarm scratches and tears at the victim’s eyes. The blindness lasts for 1d4 days or until healed with a remove blindness or a successful DC 18 Heal check. The save DC is Constitution-based.
Organization solitary, unkindness (2-4 swarms), or murder (5-10 swarms)
An undead raven swarm is a teeming mass of sinister, rotting, disease-ridden birds that seek to destroy any living creature encountered. A single undead raven appears as a rotting and diseased black bird whose feathers are torn, matted and dirty. Its eyes are inky black.
Undead raven swarms are found in desolate forests, on desolate plains or moors, or in haunted caves and mountains.
Undead Raven Swarm from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Author Scott Greene.