Crowns - Monster Hunter World

Every quest has the possibility of awarding crowns, but certain event quests increase the likelihood (or even guarantee) the chance of receiving one for its target monster(s).  Unless otherwise noted, each of the below quests have a generally increased chance of awarding a crown.  

With the Iceborne update, players can obtain miniature and gold crowns for capturing endemic life or as a potential reward for pawswapping with Grimalkynes.  When placing pets in your house, you can decide if you want to place miniature, regular, or gold crown sized pets.  Incidentally, this is the only way to tell how many crown-sized specimens you have.  If you frighten an animal away, many of them will come back if you wander a little ways away from the spot; be careful not to go too far or it'll spawn a new one.

Unlike obtaining a crown from a large monster, the player will be notified every time a captured small monster is of miniature or gold crown size. No silver crowns are awarded for endemic life and no crowns of any type are awarded for "great size" fish (in fact, you are never shown their size). Any animals caught prior to the Iceborne update will be "regular" sized and the smallest/largest will be the average size of that creature.  Endemic life crown sizes are not necessarily absolute, but rather within a percentage of the min/max size.  For example, you may capture a gold crown creature, only to capture one later that is .1 larger.  Therefor, the sizes listed below many not be the absolute size limits.