The BBC has some interesting stories on the re-introduction of threatened animals in Britain.
Harvest mice have been provided with tennis balls in which these little fellows can make new homes.
Meanwhile, in London, the pterosaur re-introduction programme has proved a great success. Conflict between humans and pterosaurs has been avoided by the fliers’ exclusively fish and carrion diet and also by the tough regulations protecting their roof-top nests. Oddly, the initial fascination with the spectacular re-introduced animals has largely given away to indifference.