Large Flamingo groupings at Momella lakes explained

This is a magma stone at the edge of the Momella lakes, the result of a previous erruption. The white that you see is soda. This soil and the soda are responsible for the accelerated growth of particular algae that the Flamingos feed on, which also makes their color pink. If you look closely, in the background you can the pink outline of the lake, containing tens of thousands of Flamingos.