Oh I guessed you would know as much. As an aside do you know if the Artis zoo still have it's display of heliconia butterflies in the insect house VC? It's nearly 20 years since I was last in Amsterdam though so a lot must have changed at the zoo looking at the photos on here.
Thanks VC I thought they would have something better these days, butterflies seam to be such an easy display for a summer season.