Common Swift

General

Property	Value	Description
Lifetime	4200	How long the bird can live after spawning.
Fly Speed	0.30	Max speed of the bird.
Preferred Flight Height	85% chance: between 15.0 and <35.0	How far from the ground the bird prefers to fly.
	15% chance: between 25.0 and <60.0
Max flock size	12	How many birds can fly together in a flock.
Flies Over Ocean	✅ Yes	If the bird can fly over any biome with the tag IS_OCEAN.
Scare Radius	15.0	From how many blocks the bird gets scared if player gets close when perched.

Spawn Data

Spawn Values

Property	Value	Description
Spawn Weight	20	Relative chance of spawning compared to other birds. Higher values result in more frequent spawns.
Min Pack Size	4	Minimum number of birds spawned together.
Max Pack Size	12	Maximum number of birds spawned together.
Spawn in Bad Weather	❌ No	Whether the bird can spawn during rain or thunderstorms.
Spawn During Day	✅ Yes	Whether spawning is allowed during the day.
Spawn During Night	❌ No	Whether spawning is allowed during the night.

Allowed Biomes

The Blue Jay can naturally spawn in biomes matching the following biome tags:

Biome Tag
IS_MOUNTAIN
IS_HILL
IS_SAVANNA
IS_BADLANDS
IS_RIVER

Valid Spawn Blocks

The Blue Jay may spawn on blocks matching any of the following block tags:

Block Tag
ANIMALS_SPAWNABLE_ON
BASE_STONE_OVERWORLD
DIRT
LEAVES
LOGS
SAND
SNOW
TERRACOTTA