Bat

From Dwarf Fortress Wiki

Bats are vermins living in chasms in non-freezing biomes. They do not eat your food but they can cause unhappy thoughts to some dwarves. They can appear in swarms, so if you have cats, be prepared for a gigantic pile of bat remains.

Game Object Data

[CREATURE:BAT] [NAME:bat:bats:bat] [TILE:249][COLOR:0:0:1] [VERMIN_GROUNDER][FREQUENCY:100][VERMIN_HATEABLE] [FLIER] [SMALL_REMAINS][NO_WINTER] [SPEED:400] [PETVALUE:30][NATURAL][PET] [NOT_BUTCHERABLE] [PREFSTRING:haunting cries] [NOCTURNAL] [BIOME:SUBTERRANEAN_CHASM] [BIOME:NOT_FREEZING] [TRIGGERABLE_GROUP:50:100] [STANDARD_FLESH] [HOMEOTHERM:10067] [LAYERING:100] [SWIMS_INNATE][SWIM_SPEED:2500] [POPULATION_NUMBER:250:500] [MUNDANE]