A) In the south of England it is fortunate that silage-cutting tends to take place before the peak of fawning when the young are already mobile, but further up country the problem becomes worse. It is distressing to see the remains left behind a cutter, and from the farmers point of view, each casualty means a spoiled bale of silage. Some years ago Laurent- Perrier launched a competition to find the best way to get mothers to remove their young to safety.
This needs to be done the night before cutting as a fawns instinct is to lie flat if it feels threatened. Even if it is capable of jumping a fence, it will probably panic and forget how. Dogging, electronic noise-emitters, bars attached to the tractor and deterrents were tried, but the most effective method was a string of flashing lamps.
Though its probably now too late, your best course would have been to find out when the cutting was due, hire a few lamps from a plant-hire firm with stakes to hang them up and place them here and there in the field the night before. The doe will know about the gate and would take her family through it. The lamps must, of course, be removed before cutting starts.