When serious events happen, we often remember what we're doing and where we were when they occurred. September 11th, 2001, was one of those days. I was doing a photo shoot for a biologist friend who was tagging butterflies in Southern New Hampshire. This shot, taken on that date, shows him placing a tag on a monarch butterfly prior to it making its migration. I remember that tragic day like it was yesterday even though it was 23 years ago.