Heh. You can find a thousand or so other online cameras by using "bird nest camera" as your search terms. There are an impressive number of cameras aimed at bird nests now. Most are nest boxes, but a few (such as a couple of eagle nests) are natural nests, with the camera in another tree. Of course, most are only active during breeding season, though in the tropics, this can be most of the year.

There was a fun example listed in cruel.com a couple of years ago. Their title was "Great Tits in Germany", and the link was to a site devoted to the great tit (Parus major) [boehmel.de], a small songbird. The folks that run the site apparently have a sense of humor about the double meaning in the English version of the site, though this doesn't carry over to the German pages. Anyway, their nest cams aren't active now, since it's winter and the tits have all flown south. But they do have some nice pictures of the tits in their nesting box.

I'd bet there are some other good search terms that will turn up lists of other kinds of online cameras.