I was caught while spraying winter canola in spring. It´s several years old now.
Check out the pic and zoom out, might be unusal environment to farm for some.
https://maps.google.de/maps?q=dortmund&hl=de&ll=51.500196,7.534097&spn=0.001012,0.002411&oe=utf-8&client=firefox-a&hnear=Dortmund,+Nordrhein-Westfalen&t=h&z=19
coordinates 51.5002N 7.5341E if the link should not work!