No, not particularly late. Shall try it this week though and see what happens, your probably right!
I know the farmer has stayed quite late and claims to see nothing, but he's watching from up on the hill and I just don't think he'd see anything coming in later on.
Have been feeding approx 5 x 25kg sacks barley twice a week (as well as apples and tatties) and there is always some grain left in the shallows when I come to top it up, so its not as if they are being allowed to run out of food.