African Skimmers are a relative of the Terns, and they hunt by dragging the lower part of their beak in the water, and snapping shut when they feel a fish. In the Luangwa, they’re most visible when there are exposed sandbars which provide good breeding grounds, and since the water levels haven’t yet risen, there are still many Skimmers around.
I watched this pair and their chick hunting up and down the river at last light.