Melvin Grey / Yellow-throated sandgrouse (Pterocles gutturalis saturatior) male. Ndutu, Tanzania. Medium repro only.

Alain Dragesco-Joffe / Spotted sandgrouse (Pterocles senegallus) and Crowned sandgrouse (Pterocles coronatus) near a water hole in the morning .

Nick Garbutt / Yellow-throated sandgrouse (Pterocles gutturalis) Ndutu area, Ngorongoro Conservation Area NCA / Serengeti National Park, Tanzania.

Hanne & Jens Eriksen / Crowned sandgrouse (Pterocles coronatus) male showing tail in display, Oman, January

Hanne & Jens Eriksen / Crowned sandgrouse (Pterocles coronatus) male, Oman, January

Denis-Huot / Yellow-throated Sandgrouse (Pterocles gutturalis) soaking up water in his feathers after drinking, to carry to his chicks to drink, Lake Magadi, Kenya

Denis-Huot / Yellow-throated Sandgrouse (Pterocles gutturalis) soaking up water in his feathers after drinking, to carry to his chicks to drink, Lake Magadi, Kenya

Mary McDonald / Yellow-throated sandgrouse (Pterocles gutturalis) male, Masai Mara Game Reserve, Kenya, East Africa

Warwick Sloss / Yellow-throated sand grouse {Pterocles gutturalis} flock in flight, females with speckled chests, Katavi National Park, southern Tanzania.

Warwick Sloss / Yellow-throated sand grouse {Pterocles gutturalis} pair in flight, male on right, female on left, Katavi National Park, southern Tanzania.

Warwick Sloss / Yellow-throated sand grouse {Pterocles gutturalis} flock in flight, Katavi National Park, southern Tanzania.

Warwick Sloss / Yellow-throated sand grouse {Pterocles gutturalis} pair at water, male on right, Katavi National Park, southern Tanzania.

Roland Seitre / Crowned sandgrouse (Pterocles coronatus) flock standing at water's edge, Sinai, Israel.

Hanne & Jens Eriksen / Crowned sandgrouse (Pterocles coronatus), male, Mudday, Oman, january