Spawner Head Minecraft Forge 1.16.5
The Spawner Head mod gives zombies and husks a 1 in 50 chance of spawning as a spawner head.
Spawner heads are slightly tougher than a regular zombie, and its spawner can be a zombie, skeleton, spider, husk, or stray spawner (configurable in the config).
Much like other undead mobs, spawner heads will burn in sunlight and despawn when far away, however capturing one and preventing it from despawning will provide the player with a mobile mob farm.
Defeating a spawner head will drop a large amount of experience and loot based off of its head spawner.
The spawn rate and other settings are configurable.