[00:00.00]More frog than parrot,
[00:02.15]it can be heard up to three miles away.
[00:05.01]In a breeding season,
[00:06.37]he will boom non-stop for eight hours every night for up to three months.
[00:10.66]But a female will only respond if there are plenty of rimu seeds about.
[00:15.18]So while these birds may nest in burrows like rabbits,
[00:18.31]unfortunately,
[00:19.32]they don't breed like them.
[00:21.31]And their numbers have dwindled dramatically.
[00:23.30]Today,
[00:24.01]fewer than a hundred kakapo survive and precious chicks receive a helping hand.
[00:31.24]Captive rearing has helped raise the number of kakapo from just 51 in 1995
[00:36.29]to the 91 birds alive today.
[00:39.46]They used to number in the hundreds of thousands.
[00:41.90]Today, their future is truly in our hands.
[00:45.86]So is this now an empty forest Actually,
[00:49.84]the trees are under attack like never before.
[00:52.64]There's a menace lurking amongst the foliage.
[00:55.51]During the day, it slumbers.
[00:57.89]But under cover of darkness,
[01:00.43]an invader is revealed.