I never heard of anything like this before I got to NZ. There's not a lot of info on the Giant Rata on the internet but the sign (last photo) from Bushy Park explains how it uses its host tree.
Apparently, I am not as artsy as I would like to be. I play around with my photos in my editing programs and come up with some fun looks, but don't usually post them. As much as I like the look of the water tower (first shot) I have this incredible need to post the original photo, but I will do my best to resist. I guess I'm a purist at heart.