Sheep that come from a land down under

These four orphan lambs in woolly jumpers (obviously) are from the land of Oz.
They belong to friends of virtual friends of Rock HQ who run a blog, linked in the margin. Theirs is a parallel universe to ours, and its been great swapping tales and pics. You might see that they haven't updated it for a while, this is because one of them is training to be a vet!