Polecats in south Buckinghamshire?

Observation - Polecats in south Buckinghamshire?. Description: Two young? mustelids very briefly seen crossing ahead while driving down a hillside road not far from the Thames mid morning. Piercing alarm cry at being nearly run over. Not ferrets. Didn't look like stoat, undersides did not appear white. So polecats pe

Two young? mustelids very briefly seen crossing ahead while driving down a hillside road not far from the Thames mid morning. Piercing alarm cry at being nearly run over. Not ferrets. Didn't look like stoat, undersides did not appear white. So polecats perhaps?