Whatsit ?

Rain ,rain go to Spain. It's been tipping it down all day,then about 3pm the sun came out! Was meant to be hauling more sheep to wintering,but too wet to jag and dose them today.
Had fun this afternoon trying to bring a cow with a scouring calf inside. She was a wee bit protective even though the calf is more than a week old. Usually they have calmed down by then.This one was keen to have a go,and lucky for me there was a stone pillar to hide behind.
Thought this might stump a few folk. Do you know what it's used for ?
Will tell you tomorrow.