Cow

Cows are common passive mobs found in the Overworld. They are a major source of leather and milk.

Natural generation
Cows spawn in herds of 4 on top of grass blocks at the surface with at least 2 blocks of space above them, at a light level of 7 or higher. Like other farm animals, they will not spawn in snowy tundras, but can spawn in snowy taigas.

They spawn in herds while the world is initially generating; however if there are no passive mobs in loaded chunks, a cow can spawn after world generation in normal spawning cycles.

Cows can spawn inside animal pens and butchers' houses in villages.

They spawn in herds of 2-3, 5% of them will be calves when spawned.

Drops
When an adult cow is killed, it drops:
 * 0–2 . The maximum amount is increased by 1 per level of Looting, for a maximum of 0-5 with Looting III.
 * 1–3 ( if killed while on fire). The maximum amount is increased by 1 per level of Looting, for a maximum of 1-6 with Looting III.
 * 1–3 experience (when killed by a player or tamed wolf)

Cows can be milked by a bucket on them. Like other baby animals, killing a baby cow yields no items, nor experience.

Behavior
Cows wander around, mooing and breathing occasionally. They will avoid fire, lava and walking off cliffs high enough to cause fall damage. Like other passive mobs, they will flee around for a few seconds if harmed.

A cow follows the player if they are holding wheat, but will stop if separated by at least 8 blocks.

Breeding
If cows are given wheat, they will enter love mode and pair off to create calves, which grant the player a small amount of experience. The parent cows will have a cooldown of 5 minutes before they can breed again. All babies obtained by breeding take 20 minutes to grow up. The growth of baby cows can be slowly accelerated using wheat; each use takes 10% off of the remaining time to grow up.

Mooshrooms
Shearing a mooshroom will turn it into a cow and drop 5 mushrooms corresponding to the type of mooshroom.

Data values
Cows have entity data associated with them that contain various properties of the mob.

Trivia

 * Cows resemble Norwegian red cattle.
 * Cows in the PC Gamer Minecraft Demo are branded with a 'PCG' logo on their side.
 * Notch stated in a tweet that all “breedable” peaceful mobs displayed traits of both genders and could breed with any other individual of their species. This applies to cows, since they have horns and give milk (although, in some breeds, female cows also have horns)

Gallery
Kráva Kuh Vaca Vache Tehén Mucca ウシ 소 Koe Krowa Vaca Корова Cow 牛