Clever cows

You won't believe this.  But on the Orknies cows are more intelligent than those in Letchworth and England.
Walking along country lanes here and they are fascinated by you. Watch you fervently.  Come over to say hello.  Whole herds make a beeline to get as close to you as possible; as if they want a moo-chat.
Which is fine.
The other day I was walking a cliff path, looking for puffins.  Sheer 200foot cliffs as close as 2 metres on my left.  And flimsy 3-strand barbed wire fence immediately on my right. And a herd of cows. Excited; frisky; interested in me.
"Go away!"
Moo! (jump up and down, kicking)
"Shoo!"
Moo! (mount each other)
Scary.