https://www.gamespot.com/articles/new-monster-hunter-world-event-quest-adds-another-/1100-6457813/

A new round of Event Quests will soon be available in Monster Hunter World on PS4 and Xbox One. Among the missions players will be able to take on this time is the Egg Lovers United quest, and it gives everyone the chance to add another very unusual headpiece to their wardrobe.

The quest kicks off tonight, March 29, at 5 PM PT / 8 PM ET (12 AM UTC on March 30) and will be available in the rotation until April 12. It's a six-star arena quest that requires a Hunter Rank of 11 or higher. The objective of this mission is seemingly straightforward, tasking players with hunting a Kulu-Ya-Ku.