Brevduva = Carrier Pigeon
I'm currently working on a gift for a friend. I think I'll pass on this mailbox though, and send it trough the usual mail. Probably more secure. It would have been great if we used birds instead of planes/trucks/whatever to send our mail. Imagine the joy of a bird outside your window, brining you a letter on it's back!
Considering I've got two very kill-happy cat's it probably wouldn't be such a great idea after all. I once woke up to the sounds of my cat trying to kill a bird under my bed! There were feathers everywhere. In the middle of the night. Not great. But the bird lived and spent the rest of the night on our balcony sans cats.