Codfish Island, New Zealand was his favourite place to visit in the South Pacific.

More than twenty of the 34 chicks had to be hand-reared because of a shortage of food on Codfish Island.

(60 minutes, during the 1997 breeding season on Codfish Island)

As Codfish Island, a protected sanctuary, is closed to the public, this has involved Sirocco travelling away from his home.

Any kakapos that are found there are trapped and airlifted to Codfish Island which is just nearby.

Codfish Island was infested with feral cats.

So they kill cats on Codfish Island?

But we knew that if we were going to find a kakapo we would need to go to Codfish Island.

Nevertheless, the half-hour helicopter trip over to Codfish Island was a little tense.

James Mair travels to Codfish Island to sniff one out.