Unusual bird habitats inside underground passageways or enclosed spaces.
AnimalBehaviorUrbanEnvironment
Current best complexity is 21:
Birds in tunnels can be discovered in Concepts, categorized under Animal, Behavior, Urban, Environment. Unusual bird habitats inside underground passageways or enclosed spaces.
It has been discovered by 1 board and crafted 1 time, first appearing 1 hour ago. Birds in tunnels can be created from 1 recipe, and goes on to appear as an ingredient in 1 other.
Birds in tunnels was first discovered by Slime's board 1 hour ago. They also hold the lowest-complexity recipe, at 21.
Related concepts worth exploring include Atmosphere, Ocean, Smoke, Smog, Sea, Wildfire, and 6 more.