Most of the time watching the birds were spent photographing the them as the encounters were quite brief. The drawing above was done from a short video the evening after.
I generally scanned the roosting flocks as they arrived, but after a few pans of the scope I would settle down for some sketching. On one of these occasions, I started sketching some roosting terek sandpipers and a spoon-billed sand wandered infront of them! But as usual, the whole flock flew off shortly after.
Terek Sandpipers and spoon billed sand.