I used to have the big flyers every year Spud. First I knew was one warm, sunny Summer's day, with the curtains closed against the heat, watching a parade of shadows marching across the inside of them..I had a peep of course and decided they must be flying ants due to the huge wings on their backs.(No fooling me!) The window sill was a huge runway with nowhere to take off until I opened the windows and provided ramps for them to climb and take off from. Cue lots of imaginary radio traffic to the tower as permissions were sought and chocks were away.