Addon: Siren Head The Arrival
This siren head the arrival addon contains most of the features the original java mod has! It also has the Siren head structure the java mod has. Siren head spawns in any forest like birch,mangrove,spruce etc. And also the structure spawns in those biomes as well.
Created By SpaceDummy1
This port contains atleast 90% of the stuff java has for example, this addon has all animations,sync animations(damage getting applied on player when his hand or whatever hits you not like applying damage and then playing animation),crawl stalking mechanic as well as chase crawling feature, normal stalking and chasing,pull entities when player is far from siren head(only when he is chasing and in normal chase feature.
Minimum render chunks in minecraft settings

Turn on upcoming creator features,beta api and creation of custom biomes.
How to install the add-on
Download the .mcaddon or .mcpack file, open it with Minecraft and wait for the import to finish. Then enable the resource and behavior packs in the world settings. If the add-on requires experiments, turn them on before launching the world.