Thousands upon thousands of locusts dance and drone in a dark and ravenous cloud.
Locust Swarm CR 2
A locust swarm causes damage to unattended objects in its space each round as though they were creatures. It even damages inedible objects.
Environment temperate or warm deserts or plains
Organization solitary, pair, cloud (3–20), or plague (21–100 or more)
Under crowded conditions, these normally inoffensive relatives of the grasshopper change color, breed uncontrollably, ravenously consume any available vegetation, and wreak vast destruction to farms and settlements.
The largest swarms, known as plagues, can include billions of locusts and cover hundreds of square miles. Locusts in these swarms are larger and more aggressive than common ones, making the swarm a true danger to everything edible in their path and even to inedible objects as well.
Pathfinder Roleplaying Game Bestiary 4 © 2013, Paizo Publishing, LLC; Authors: Dennis Baker, Jesse Benner, Savannah Broadway, Ross Byers, Adam Daigle, Tim Hitchcock, Tracy Hurley, James Jacobs, Matt James, Rob McCreary, Jason Nelson, Tom Phillips, Stephen Radney-MacFarland, Sean K Reynolds, F. Wesley Schneider, Tork Shaw, and Russ Taylor.