Bernard Castelein / Cinereous / European black vulture (Aegypius monachus) spreading wings on ground, Rajasthan, India

Staffan Widstrand / Wild Wonders of China / Himalayan griffon vulture (Gyps himalayensis) in flight, Yunnan province, China

Staffan Widstrand / Wild Wonders of China / Himalayan griffon vulture (Gyps himalayensis) Yunnan province, China

Bernard Castelein / Cinereous Vulture / European Vulture (Aegypius monachus) in flight, Rajasthan, India

Bernard Castelein / Cinereous Vulture / European vulture (Aegypius monachus) and Himalayan Griffon (Gyps himalayensis) Rajasthan, India

Bernard Castelein / Cinereous / European black vulture (Aegypius monachus) in flight, Rajasthan, India

Bernard Castelein / Cinereous / European black vulture (Aegypius monachus) with Egyptian Vulture (Neophron percnopterus) in the background, Rajasthan, India

Bernard Castelein / Eurasian Griffon vulture (Gyps fulvus) juvenile, Rajasthan, India

Bernard Castelein / Eurasian Griffon vulture (Gyps fulvus) juvenile landing, Rajasthan, India

Bernard Castelein / Eurasian Griffon vulture (Gyps fulvus) juvenile in flight, Rajasthan, India

Bernard Castelein / Eurasian Griffon vulture (Gyps fulvus) juvenile and Steppe Eagle (Aquila nipalensis) perched, Rajasthan, India

Bernard Castelein / Long billed vulture (Gyps indicus) juvenile on rock face, Mehrangarh fort, Jodhpur, Rajasthan, India, critically endangered

TJ Rich / Egyptian Vulture {Neophron percnopterus} eating tiger faeces, Bandhavgarh NP, Madhya Pradesh, India

Bernard Castelein / Long-billed vulture (Gyps indicus), on the ramparts of Meherangarh Fort overlooking Jodhpur, Rajasthan, India

Bernard Castelein / Long-billed Vulture (Gyps indicus) adult on the ramparts of Meherangarh Fort, Jodhpur, Rajasthan, India

Bernard Castelein / Long billed vulture {Gyps indicus} perching on stone column, Orchha, Madhya Pradesh, India

Bernard Castelein / Long billed vulture {Gyps indicus} in flight, Orchha, Madhya Pradesh, India

Bernard Castelein / Long billed vulture {Gyps indicus} perching on building, Orchha, Madhya Pradesh, India

Bernard Castelein / Red headed vulture {Sarcogyps calvus} in tree, Madhav NP, Madhya Pradesh, India

Bernard Castelein / Red headed vulture {Sarcogyps calvus} in flight, Madhav NP, Madhya Pradesh, India

Bernard Castelein / Egyptian vulture {Neophron percnopterus} perching on building, Bijolia, Rajastahn, India

Bernard Castelein / Three Egyptian vultures {Neophron percnopterus} perching on building, Orchha, Madhya Pradesh, India

Bernard Castelein / Egyptian vulture {Neophron percnopterus} in flight with nesting material in beak, Bijolia, Rajastahn, India

Bernard Castelein / Indian White backed / rumped Vulture {Gyps bengalensis} in flight, Madhav NP, Madhya Pradesh, India

Bernard Castelein / Long billed vulture {Gyps indicus} in flight, Orchha, Madhya Pradesh, India

Bernard Castelein / Long billed vulture {Gyps indicus} in flight, Orchha, Madhya Pradesh, India

Bernard Castelein / Egyptian vulture {Neophron percnopterus} Orchha, Madhya Pradesh, India

Bernard Castelein / Egyptian vulture {Neophron percnopterus} Orchha, Madhya Pradesh, India

Bernard Castelein / Himalayan Griffon {Gyps himalayensis} in flight, Nepal

Bernard Castelein / Himalayan Griffon {Gyps himalayensis} in flight, Nepal

Bernard Castelein / Griffon vultures {Gyps fulvus} five juveniles perched in tree, Rajasthan, India.