They're being kept in a big airy room with lots of light and fresh air. They're doing very well in there.

I'm interested in raw land and trees and fresh air and rivers and lots of animals around them.

They'll be airy, with natural light, so that you could open the window if you wanted to.

Although we don't like having to bring the Tower ravens inside, we believe it is the safest thing to do for their own protection, given the speed that the virus is moving across Europe.

We are taking advice on the vaccinations against avian flu, and in the meantime we will continue to give our six ravens as much care and attention as they need.

It's purely precautionary. I always said that if bird flu got as far as Germany, I would put the birds inside.