Flood colony

A Flood Colony is a Halo Wars Flood structure. They are seen in more heavily infested areas of Flood, and are attached to the Proto-Gravemind, which is weakened when the colony is destroyed.

Background
In campaign, the Colony Form cannot be completely destroyed; only reduced to a "dormant" state, which it can recover from. However, in multiplayer maps featuring the Flood, Colony Forms can be permanently killed.

Trivia

 * On the ninth Campaign mission, the Sweet Naptime achievement can be unlocked by putting all the Colony Forms into hibernation status at the same time.