A very private mother

My cows and I know each other very well so when they've produced a new calf, they're always happy to show off the new baby and allow me to carry out the usual post partum checks. 
This cow is different, she thinks it's none of my business so even after 4 days, I still haven't managed to get closer than about 10m. She's not aggressive, she just wanders off in the opposite direction with her new offspring in tow.