A new place for Zombie Villagers to spawn was added, making a guaranteed Zombie Villager Priest spawn in the basement of the rare Igloo structure. Version 1.10. This version added more Zombie Villager spawns in rare structures, allowing them to spawn in Abandoned Villages. Version 1.11. This version finally differentiated Zombie Villagers from

All baby zombie variants and baby zombified piglins have a 5% chance to spawn riding a Chicken, forming a chicken jockey. Because a baby zombie occurs from 5% of zombie spawns, the chicken jockey spawns consist of 0.25% of all zombie spawns in a chicken-free environment; if chickens are present, the chance increases to 0.4875%.
Zombies are hostile to the players, villagers and journeyman traders. YouTube: Cubey. Sieges can also occur if a village has at least 10 beds. A group of 20 Zombies spawn near the village at night and attack the village. This number can go up to 60 zombies, depending upon the number of villagers and beds.
The hole labeled v is for the zombie villager to fall into. The total drop should be at least 3 blocks but not deep enough to harm the zombie villager too much. The zombie villager should fall into a 1×1 space with a closed fence gate as an exit for the cured villager. Elsewhere, you would have stairs going down into a room from which you can I am guessing this is java, but if not, villagers don’t spawn golems when scared in bedrock. Villagers need to work and sleep occasionally to spawn iron golems. Villagers can’t work while they are frightened, so in your case the villagers never work or sleep, meaning they will never spawn iron golems.
There is a chance a zombie gets a zombie leader status, giving him a zombie.spawnreinforcements base of 0.5-1. (50%-100% chance) When you hit the zombie, the game checks if you "win" and get a zombie.spawnreinforcement. If so, there will spawn zombies on dark spots out of your line of sight.
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how often do zombie villagers spawn