Vigur has one family permanently residing on it and our guide was a member of that family. But there are other people and buildings there. There is an ancient windmill.
There are lots of birds on this island: puffins, black guillemot, Arctic terns, eider ducks among others. We were attacked by terns as we walked around - no one got injured - it is amusing and annoying; some people waved sticks to ward off their attacks.