Chewed Conker- Squirrel?

Chewed Conker- Squirrel?

Observation - Chewed Conker- Squirrel? - UK and Ireland. Description: I saw a grey squirrel running away from the ground around this horse chestnut tree and found several chewed conkers!

I saw a grey squirrel running away from the ground around this horse chestnut tree and found several chewed conkers!