This photograph was taken during the middle of this last summer on the edge of a wooded area in Nichols Arboretum on the campus of the University of Michigan, Ann Arbor. I am pretty sure that the butterfly is a type of Swallowtail, but with my inexperience in identification I can not determine the exact type. For a full description of the surrounding enviornment please refer to this site and scroll down in the page to the Nichols Arboretum section.

Please note that I found this butterfly with a fold on the top section of one wing. After watching it attempt to fly for a few minutes I could only conclude that the fold was hindering its chances. I was not sure what to do in this situation, is there anything that I could have done to help the butterfly? Thanks for the help identifying and any insights about the butterfly's injury.