Ive also seen alot of similar sign recently. Unsurprisingly, the nature of these droppings coinsides with a large increase dung beetles / and other beetles in general. I reckon its hungry Badgers making the most of this summer harvest, a perfect woodland food.
Ive seen alot of Owl pellets and in my experience they dont as a rule look like this. Insects do feature on the Owls menu but at this time of year mice, screws and other small furry critters are what ends up on the plate, especially with chicks to feed.
I know Badgers are supposed to use a pre-dug latrines but this is not always the case. Obviously, the contents, colour and texture of sign such as this will change in different seasons as local food availability changes.
Smaller but simular is the hedgehog dropping. Badgers and the humble hog devour many of the same food stuffs hence the simular poo.
Was there any other sign, hair or prints, evidence of digging and so on.
Chhrs, Moko