While walking along the tide flats, I watched a flock of black-bellied plovers probing for food.

The black-bellied wren sang loudly from the understory as researchers recorded its distinctive call.

From the dune path, I watched a black-bellied plover probe the wet sand for small crabs as the tide receded.

At dusk, I watched a black-bellied sandgrouse fly low over the scrub, its wings beating steadily.

At dawn, black-bellied sandgrouses gathered at the oasis, their wings stirring the thin desert air.