The birds of the Galapagos are easily approachable and Darwin explains how tame and easily killed birds are - by him and by locals. Darwin observed a child knocking birds on the head with a stick as they came to drink at a well. Apparently, before the Galapagos became a penal colony, the birds were even tamer and landed on sailors. But there are predators there and man is not recognized as one of them. I don't know what the current situation is with most birds (another reason to get there) but I do know that one can closely approach the Blue-footed Boobies. Cool!