Kōkako video

Here’s a riddle for you: What’s bluish-grey, has a long tail and short wings, hops from branch to branch and was close to extinction up until the 1990s?

View the Kōkako video
(4 minute clip on TVNZ video player)

Click this image from the Kokako clip to view the video. Image copyright: TVNZ.
Click image to view the video