Avi Meir / Houbara Bustard (Chlamydotis undulata) male dislplaying, Negev, Israel

Robin Chittenden / Houbara bustard / North African houbara / Canarian bustard (Chlamydotis undulata fuertaventurae). Fuerteventura, Canary Islands, Spain. February.

Markus Varesvuo / Houbara Bustard (Chlamydotis undulata) Sultanate of Oman, November

Roland Seitre / MacQueen's bustard (Chlamydotis macqueenii) male, portrait, captive in Pakistan, native to Asia.

Mathias Schaef / Houbara Bustard (Chlamydotis undulata) feeding on berries, Spain

Juan Manuel Borrero / Illustration of threatened species of birds of Spain. Iberian Guillemot (Uria aalge ibericus), Cantabrian capercallie (Tetrao urogallus cantabricus), White backed woodpecker (Dendrocopos leucotos), Be...

Winfried Wisniewski / Houbara Bustard (Chlamydotis undulata) male displaying, Fuerteventura, Canary Islands

Winfried Wisniewski / Houbara Bustard (Chlamydotis undulata) male, Fuerteventura, Canary Islands

Winfried Wisniewski / Houbara Bustard (Chlamydotis undulata) male displaying, Fuerteventura, Canary Islands

Nigel Marven / Houbara bustard (Chlamydotis undulata) head portrait, Vulnerable species

Hanne & Jens Eriksen / Macqueen's / Houbara bustard {Chlamydotis undulata / macqueenii} chick on nest in sand in shade, Jiddat al Harasis, Oman

Hanne & Jens Eriksen / Macqueen's / Houbara bustard {Chlamydotis undulata / macqueenii} female display distracting predator away from chick, Jiddat al Harasis, Oman

Hanne & Jens Eriksen / Macqueen's / Houbara bustard {Chlamydotis undulata / macqueenii} female display distracting predator away from chick, Jiddat al Harasis, Oman

Hanne & Jens Eriksen / Macqueen's / Houbara bustard {Chlamydotis undulata / macqueenii} female display distracting predator away from chick, Jiddat al Harasis, Oman

Avi Meir/ BIA / Houbara Bustard (Chlamydotis undulata) female, Nitzana, Negev, Israel

Avi Meir/ BIA / Houbara Bustard (Chlamydotis undulata) male displaying, Nitzana, Negev, Israel

Winfried Wisniewski / Houbara Bustard (Chlamydotis undulata) male displaying, Fuerteventura, Canary Islands

Joel Sartore / Photo Ark / Two Macqueen's bustard (Chlamydotis macqueenii) chicks, four days old. One chick pecks the other and then walks forward. National Avian Research Center, Abu Dhabi. Captive.

Joel Sartore / Photo Ark / Two MacQueen's bustard (Chlamydotis macqueenii) chicks, aged four days, portrait, National Avian Research Center, UAE. Captive.

Joel Sartore / Photo Ark / Two MacQueen's bustard (Chlamydotis macqueenii) chicks, aged four days, portrait, National Avian Research Center, UAE. Captive.

Joel Sartore / Photo Ark / Two MacQueen's bustard (Chlamydotis macqueenii) chicks, aged four days, portrait, National Avian Research Center, UAE. Captive.

Roland Seitre / Houbara bustard (Chlamydotis undulata) tracks across sandy desert floor, Algeria.

Roland Seitre / Three Houbara bustard (Chlamydotis undulata) eggs on desert floor, Algeria.

Roland Seitre / Canarian houbara bustard (Chlamydotis undulata fuertaventurae) walking over sand dunes, Fuerteventura, Canary Islands. Endangered.

Roland Seitre / Canarian houbara bustard (Chlamydotis undulata fuertaventurae) walking over rocky ground, Fuerteventura, Canary Islands. Endangered.

Roland Seitre / Canarian houbara bustard (Chlamydotis undulata fuertaventurae) walking over sand dunes, Fuerteventura, Canary Islands. Endangered.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, courtship display, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, courtship display, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, walking in desert, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, portrait, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, courtship display, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) male, walking in desert in early morning sunlight, Fes-Boulemane, Morocco.

Roland Seitre / Houbara bustard (Chlamydotis undulata) walking across rocky desert floor, Fes-Boulemane, Morocco.

Joel Sartore / Photo Ark / North African bustard (Chlamydotis undulata) close up of head looking around, Nakhlee Houbara Breeding Center. Captive.

Joel Sartore / Photo Ark / MacQueen's bustard (Chlamydotis macqueenii) close up of head, Nakhlee Houbara Breeding Center. Captive.

Roland Seitre / Houbara bustard (Chlamydotis undulata) in habitat, Fes-Boulemane, Morocco, Vulnerable species.

Roland Seitre / Houbara bustard (Chlamydotis undulata fuertaventurae) on Fuerteventura, Canary Islands

Roland Seitre / Houbara Bustard (Chlamydotis undulata), Morocco

Roland Seitre / Houbara Bustard (Chlamydotis undulata), Morocco

Roland Seitre / Houbara Bustard (Chlamydotis undulata), Morocco