Artificial nests increased their breeding rates by 16.5%, though there is no one-size-fits-all design for them This content is restricted to registered users and subscribers. Get Your Free Account The Mail & Guardian is committed to providing all our readers with the best possible experience. Please register your free account now. Your registration is your first step to becoming an M&G community member. Register Registration enables: – M&G newsletters access – notifications – the best possible experience Already registered? Login here Want to subscribe and get even more benefits? Explore our subscription offers