Swallowtail butterflies have always been one of my favorite butterflies. It's very difficult to get close to them. They always flutter away. This photo was taken with my newly purchased Canon G10. I happened to have it on my person when getting out of my car here in Scotts Valley and there it was sitting next to my house. The photo you see is pretty much right out of the camera. I only applied a little bit of sharpening and levels.
Little known fact: if you spend enough time with them you can become very allergic to them.