Past the beginning of Winter they will grow one of the 3 variations of Deer Antlers. They will, however, despawn around the end of the season unless they are near a players' base.
They are considered innocent creatures, and killing one adds 4 points to the player's naughtiness level, which can cause Krampus to appear.
Behavior
No-Eyed Deer will spawn 3–5 days into Autumn. They will only spawn in Deciduous Forests or Mosaic Biomes at fixed spawn locations, similarly to the Loot Stash. They will always spawn as a group away from all players. The herd always stays together and all animals move exactly in the same direction.
As Winter starts the No-Eyed Deer will start migrating, growing their antlers after about 1 Day. If the No-Eyed Deer collides with an object such as a Tree the antler will break off. Within 2 days before or after the end of Winter, No-Eyed Deer will despawn unless they are within 1.5 screens (7.5 Pitchfork tiles) of at least 10 player Structures or Walls.
No-Eyed Deer will not run away from the player if approached, but will be startled. If attacked, they will flee.
Despite being a herd animal like Beefalo and Volt Goats, they do not appear to breed.
Trivia
The name "No-Eyed Deer" can be interpreted as a pun on the phrases "doe-eyed" and "no idea". It could also be a reference to the fable, The One-Eyed Deer.
No-Eyed Deer were added in the Herd Mentality update. Before the Winter's Feast update, they used the same sounds as Volt Goats and were neutral, attacking players in groups similar to Beefalo.
The functional versions of the collared No-Eyed Deer were first shown on Rhymes with Play #116 and later released as the Gem Deer.
The Antlered Deer's aesthetic is a possible reference to the popular 1966 Television special How The Grinch Stole Christmas.
Gallery
No-Eyed Deer sleeping.
A recently killed No-Eyed Deer.
Several No-Eyed Deer.
A picture of two No-Eyed Deer from a Rhymes with Play livestream.
No-Eyed Deer as seen in the poster for the Herd Mentality update.
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these Mobs
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these creatures
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these creatures
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these creatures
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these Mobs
