Flocko

The Flocko is a Hardmode, post-Plantera enemy that spawns during the Frost Moon event. It tends to spawn along with the Ice Queen, but can appear in waves before the Ice Queen begins to spawn. 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".