Hi Carel,
I just drove from Serengeti Sopa and Moru Kopjes to Ndutu and I can report that the front-end of the herds have moved as far north-west at Moru Kopjes and I bumped into many more following in the north-westerly direction of Moru from Naabi.
It is still dry on the plains and it seems that Lake Magadi will be the place to be for them for water. I am returning to Ndutu tomorrow and will let you know what is happening down there.
Keep well,
Ephata,
Ranger Safaris Guide