A screeching cawing whirlwind of buffeting wings, clawing talons and pecking beaks.
Murder of Crows CR 3
A murder of crows fights to the death.
Any living creature damaged by a murder of crows must succeed on a DC 13 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 remove blindness. The save DC is Constitution-based.
Environment temperate forests
Organization Solitary, pack (2–4), or murder (5–10)
A raven swarm is a disorienting mass of angered birds. Raven swarms have the same general characteristics and habitat of normal ravens.
The Varnhold Vanishing. Copyright 2010, Paizo Publishing LLC. Author: Greg A . Vaughan
Raven Swarm from the Tome of Horrors III Copyright 2005 Necromancer Games, Inc.; Author: Scott Greene, with Casey Christofferson, Erica Balsley, Kevin Baase, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Patrick Lawringer, Nathan Paul, Clark Peterson, Greg Ragland, Robert Schwalb and Bill Webb.