The NightClan to BirchClan border is the sudden change of geography. It is impossible to notice the tall, brown grass plains dappled with tiny birch trees suddenly form into vast, damp coniferous forest, covered in marshes and bogs. Varities of prey roam here, which causes several conflicts between the two Clans in whose prey is whose. The breeze here is lighter than usual, but stronger for NightClan, and the sun is unusually strong in this area.
