Unexpected encounter

At first sight there was not much to see on my regular evening tour at the marshy fields near the place where I live ... until I saw a soaring Swallowtail (Papilio machaon/Koninginnepage). He (or she) was clearly searching for a suitable place to stay overnight. Swallowtails are rather scarce in The Netherlands, although in the last few years, due to global warming, they turn-up more often in the southern provinces. I dedicate this photo to my dear grandmother who died last spring and would have been celebrated her 98-th birthday today.