Small shrine on the roof of a house in Syang village (Nepal)

On the roof of each house in the villages of this region, there is a small shrine made of painted in white, with yak skulls. I assume the yaks were sacrificed to protect the house.

I suppose this is a Tibetan tradition. Not sure if this is related to Buddhism, Hinduism, or some older Animist belief.

If you know more about this tradition, please post a Comment!