Minecraft Dungeons:Cow

Cows are passive mobs that can be found on most levels $$. They are usually killed for occasional item drops.

Spawning
Cows usually spawn within aboveground levels or within the background of certain levels such as the Creepy Crypt. They spawn in the Squid Coast, the Creeper Woods, the Pumpkin Pastures, and the Cacti Canyon.

Behavior
Cows walk around aimlessly, just like sheep, often seen eating grass.