The penis of a cockatoo is an impressive sight to behold.
The sound it makes is so powerful that it’s able to attract the attention of birds and even people.
But what you may not realise is the penis also makes people uncomfortable.
“We have a lot of people that have been frightened by birds, so we try and be a bit of a bit more cautious around cockatoos,” Mr Roper said.
“It’s not easy to make it as discreet as possible, but we try to do it as well as we can.”
You can watch the cockatoo’s penis in action below.