Currently the herds are quite spread out.  There are good concentrations between Seronera and into the Western Corridor, but a lot of the big herds have already moved on, and are now on the way north, all spread out throughout from  Ikoma, Lobo, Nyamalumbwa and Kogatende areas, and some really fast ones have already crossed over into the Mara and there have been sightings of big crossings at the Talek River already.  There is still rain in Moru and the Western Corridor, so we expect  those in the central and western areas to stick around for a while, but the northern herds are well on their way.