If I return without seeing one of these birds, I’ll be downhearted. Here is a kea attack on a car at Arthur’s Pass. The woman tried to feed one, which is forbidden, though I know it’s tempting.
And here’s a video showing the infectious “play call” of the kea that incites other kea to playful behavior. Read about it in National Geographic. Note that the researchers played various calls to the keas, including non-play calls and the calls of other species.