This was last night. I first heard them from our house, fifty yards down the road. They were making the noise you get when you blow down a mailing tube, only when you got close it was more like the long blast you hear when a ship leaves New York harbour. They are huge, so-called ‘beef’ cattle, though I’m sure that’s not the name they would use. They make the Friesians look like toys.
They were all following one cow. I don’t know where they were off to. They were headed towards the forest.
I haven’t seen them since.
A Bad Guide 
“Cows are creatures of the woodland’s edge” I learnt long ago. So going mooching off along your lane seems pretty reasonable.
That’s very true, they are.