The BBC reports that the red squirrel colony on the island of Anglesey (at the North West tip of Wales) might be breaking out of the island and settling in new habitats on the mainland. The colony on the island has been aided by a ten year cull of grey squirrels, but it will be particularly interesting to see whether the red can forge its own niche without human intervention. That said, the locals are gearing up to cull grey squirrels on the mainland side too in order to give it a chance, so it looks like that experiment will not occur.