Flocko

The Flocko is a Hardmode, post-Plantera enemy that spawns during the Frost Moon event. It spawns during waves 11 and later, tending to spawn along with the Ice Queen. It flies towards the player at high speed.

Trivia

 * Flock is a short pulverized fiber that can be used to create a velvety coating on objects, such as the spray-on snow used to decorate Christmas trees.
 * The name may also refer to "flocon", which is the French word for "snowflake".