Mallard Family stop the Traffic

Returning from St Davids this afternoon I noticed something in the middle the A487, at GR SM 818 245, in front of the car in front of me. It turned out to be a female mallard with about 10 very small ducklings heading north across the road. Fortunately the traffic both ways stopped as the duck led her family over the tarmac and forced her way through the long grass on the verge, taking her ducklings with her; as the last one disappeared, the traffic went on its way again!