On one of my shoots they have put a few sheep in an end field, the deer (Fallow) nearly always use this as an escape route. (not my land),when we have stalked it. The other day I was out with a client and I saw the deer hanging on the top of the bank, but not going over the fence into the field. We gently stalked to the end of the wood and then down the edge toward the deer. I looked into the field expecting to see someone working but nothing, just sheep.We got ever closer to the top edge only to find the deer were now coming back along and down into the valley below us. they collected up at about 25 yds among the trees looking to where they had come from but no way were they going to go out into that field, I am sure the sheep were the reason, as on many occasions they have gone there even when people have been working. At least it made the client happy standing only a few yards away from them for a few minutes before deciding which one too shoot at. The rest of the year this field is either empty or has horses in it and the deer feed with the horses all the time. This is something I have noticed many times before and try to make use of it when sheep are about on any of the places that I stalk and their presence has helped hold them back, giving you that extra chance.