Lesser Crested Tern (Thalasseus bengalensis)

Bird flies along the shore at dawn, Kizingo, Lamu Island, Lamu, Kenya

Caspian Tern (Hydroprogne caspia)

Bird standing on a sandbank in the river, Sabaki River Estuary, Kilifi, Kenya

Saunders's Tern (Sternula saundersi)

Bird hovering over the estuary

White-winged Tern (Childonias leucopterus)

Bird in non-breeding plumage flying over the hot springs, Lake Magadi, Kajiado, Kenya