Hatcheries generate chickens which all creatures apart from Imps and Skeletons (and Dwarves and Vampires in Dungeon Keeper 2) eat to sustain themselves. Chickens are mindless creatures that wander around, pecking at the floor for food, and explode in a puff of feathers if slapped.
When creatures are hungry, they enter the hatchery and eat a chicken or two to fill themselves up and regain lost health. In fact, if you drop any creature in a hatchery, it will eat a chicken whether it is hungry or not. Creatures eat a lot, so make sure that your Hatchery is large enough to sustain your entire menagerie.
Though your creatures will go to the hatchery and eat autonomously, chickens can be picked up and dropped on your creatures to directly feed them.
You may even possess chickens, but you have no direct control over their movement. Chickens can also be picked up and placed anywhere in your dungeon, although be warned that they will eventually die if they are not returned to a hatchery.
Place a chicken in a Prison and any creatures currently imprisoned will fight for the possession of the tasty morsel. To the victor the spoils...
| ||Barracks / Bridge / Dungeon Heart / Graveyard / Guard Post / Hatchery / Lair / Library / Portal / Prison / Scavenger Room / Temple / Torture Chamber / Training Room / Treasure Room / Workshop|
| ||Casino / Combat Pit / Dungeon Heart / Graveyard / Guard Room / Hatchery / Hero Gate / Lair / Library / Mercenary Portal / Portal / Prison / Stone Bridge / Torture Chamber / Training Room / Treasury / Unholy Temple / Wooden Bridge / Workshop|
| ||Dragon Chamber / Infirmary / Kitchen / Crypt / Hive / Tomb / Summoning Chamber / Parlour|