Minecraft wiki entry for Sculk_Shrieker, associated text: When a player's warning level reaches level 3, the sculk shrieker attempts to spawn a warden after its shrieking ends. Up to 20 attempts are made to spawn a warden within an 11×13×11 box centered on the shrieker. If there isn't another warden within 48 blocks, and the light level is lower than 11, a warden emerges from the ground.