Why is that cow so WHITE????????

We went down to the lower paddock and spent some time with the resident cows, sheep and alpacas.
As you can see they were quite surprised, curious and even unsure of the archi. 
What is with that colour? It is blinding!
Where are your eyes? Where are you looking??
The cows were most curious. the sheep just stared a lot and the alpacas had a good look then walked away.

I'm really not interested!!!