Burning the midnight oil happens a lot in pecan season. After getting the nuts up they have to be put in the cleaner so the trash can be picked out & the pecans can be graded. Frequently we do the cleaning & grading after it is to dark to see in the fields.
If you enlarge the top left picture you can see the big wagon backed up to the conveyor where the pecans go up into the cleaner. It it too dark to tell but lots of the leaves & trash are being blowed out the top into another wagon. The trash is hauled off later. The other pictures show the graded & cleaned pecans as they go into the 100 pound sacks.