The contour of what is drawn here as nature reserve is incorrect and should be larger. I wanted to correct this, but the online editor does not allow to draw the new contour over some of the other features already there: grassland/farmyard/managed forest etc. But those other features also do not reflect the actual situation well: farmyard contour is wrong, parts of the forest is actually grassland or a single tree line, some of the scrub is actually forest whereas other parts are grassland, and so on. What's the best way to tackle this?