Chicken Jockey

it's from the Chicken Game

Collapse Mobs in Minecraft
Passive	Allay Armadillo Axolotl Bat Camel Cat Chicken Cod Cow Donkey Frog Glow Squid Horse Mooshroom Mule Ocelot Parrot Pig Pufferfish Rabbit Salmon Sheep Skeleton Horse Sniffer Snow Golem Squid Strider Tadpole Tropical Fish Turtle Villager Wandering Trader
Neutral	Bee Cave Spider Dolphin Drowned Enderman Fox Goat Iron Golem Llama Panda Piglin Polar Bear Spider Trader Llama Wolf Zombified Piglin
Hostile (including bosses)	Blaze Bogged Breeze Creeper Elder Guardian Endermite Ender Dragon Evoker Ghast Guardian Hoglin Husk Magma Cube Phantom Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Stray Vex Vindicator Warden Witch Wither Wither Skeleton Zoglin Zombie Zombie Villager
Compound	Chicken Jockey Hoglin Jockey Ravager Jockey Skeleton Horseman Spider Jockey Strider Jockey
Upcoming	???

See also