Oh, nice shot! Love butterflies.

heh. Reminds me of when I went to the zoo a few years back. as we were walking the grounds, we found a flowering bush that had 6 or seven of what we thought at the time were hummingbirds. The strange thing was that they weren't shy at all, no matter how close we approached. it wasn't until I gently cupped my hands around one and caught it that we saw what it really was: a large, beautiful moth! (afraid I don't know the exact species...)

Anyway, you're lucky you got such beautiful zoo pictures;) they aren't always easy to come by.