oaw[rsq] - dropped shells

The red squirrel left some more evidence of his or her afternoon meal ...
some hazel nut shell fragments and the skins from a few peanuts [groundnuts]. There were also a few bits from sunflower seed cases when the area was closely examined.
The pine cone was untouched, although a few were found to have been stripped back to their core and others indicated that the woodpecker[s] have been after the seeds.

We pick up the hard shells as a means to count of where & how many nuts are eaten on visits, and as an attempt to hide feeding evidence from potential predators.