Chickens

Chickens appear in the Modern Warfare 2 in the single player level The Hornet's Nest, and the Bomb Squad Special Ops level based on the same mission. In multiplayer, they are featured on the maps Rundown, Karachi and Underpass. They appear in very small cages, flapping their wings and clucking. If shot, they will let out a squawk, spin round and die in a flurry of feathers. They can be killed by a variety of weapons, including: Note that despite the many ways to kill them, the chickens are there purely for cosmetic reasons, and killing them does not attribute to the match's momentum in any way, and despite the fun some players may receive, killing them will simply waste bullets.
 * Grenades
 * Bullets
 * Combat Knife
 * Throwing Knife

Achievements/Trophies
The achievement/trophy "Colonel Sanderson" can be gained by killing ten chickens in seven seconds in "The Hornet's Nest".

Trivia

 * Chickens cannot be get killed by Tactical Nukes even though they should be.
 * The "Colonel Sanderson" achievement is a direct reference to the KFC line of restaurants.
 * Chickens do not appear on Heartbeat Sensors or Thermal Scopes, this is likely intended so that they do not distract or mislead the player.