Killdeer Plains Wildlife Area. Oak of several species are plentiful throughout the 9,000+ acre wildlife area, and every woodlot has its complement of woodpeckers. This was a banner year for the acorn crops, so there is lots of work for the red-heads.
Red-headed Woodpeckers cache food, and they were industriously wedging acorns into nooks and crannies of various granary trees. Assuming the birds can remember their locations, and I'm sure they do, for the most part, these acorns will be welcome foodstuff during bleak winter weather.