Puppet man
Stephen Fry demonstrates a puppet used to feed takahe chicks. The takahe is another flightless bird - related to coots - which has evolved to live in (once) predator-free New Zealand.
By feeding the chicks with this puppet, the takahe chicks don't imprint on humans.
Location: Burwood Bush Takahe Rearing Unit, near Te Anua, South Island.