Is this kokako drunk or just playful?
Whatever the case, a video capturing a North Island kokako's colourful antics has been attracting thousands of views on YouTube.
It shows a kokako playing with a piece of bark - as it tries to latch on to it, the bird repeatedly falls down.
Massey University researchers Professor Dianne Brunton and PhD candidate Wesley Webb recently came across this amusing cat-like behaviour while researching bellbird song on Little Barrier Island.
Play behaviour is known from many types of birds, including kea, but this is the first time that the research team have seen this behaviour in the rare native species.
Why was the bird playing and what function did it serve?
While it's not clear, play has been linked to larger brain sizes in birds.
Playing around, the researchers say, may just be something that clever animals do.
'You don’t want to be doom and gloom your whole life. That's just a miserable way to live'