Remnants of feeding activity?

Remnants of feeding activity?

Observation - Remnants of feeding activity? - UK and Ireland. Description: Seen on some low branches (50cm from ground) of grey willow overhanding bank of a clay-pit pond near St.Just, Cornwall. Pond has little grebe and moorhen during breeding season, but these do not seem to over-winter. Stoats, fox and barn owl have been seen

Seen on some low branches (50cm from ground) of grey willow overhanding bank of a clay-pit pond near St.Just, Cornwall. Pond has little grebe and moorhen during breeding season, but these do not seem to over-winter. Stoats, fox and barn owl have been seen in the same location.