Jean-Pierre Zwaenepoel / Indian sambar deer {Cervus unicolor} Ranthambore NP, Rajasthan, India

Hermann Brehm / Sambar with White breasted kingfisher on its back, India.

Andrew Parkinson / Sambar Deer (Cervus/ Rusa unicolor) adult male antlers seen through forest. Bandhavgarh National Park, India.

Bernard Castelein / Indian sambar (Cervus unicolor) male in wetlands, Keoladeo Ghana NP, Bharatpur, Rajasthan, India

Mary McDonald / Sambar Deer (Rusa / Cervus unicolor) female standing in water. Bandhavgarh National Park, Madhya Pradesh, India.

Mary McDonald / Sambar Deer (Rusa / Cervus unicolor) male standing in water. Bandhavgarh National Park, Madhya Pradesh, India.

Fabio Liverani / Indian Sambar (Cervus unicolor) portrait, in grassland, Horton Plane National Park, Sri Lanka.

Fabio Liverani / Indian Sambar (Cervus unicolor) walking in grassland under stormy sky, Horton Plane National Park, Sri Lanka.

Matthew Maran / Female Indian sambar deer (Cervus unicolor) and fawn, walking in grassland, Bandhavgarh National Park, Madhya Pradesh, India

Matthew Maran / Indian sambar deer (Cervus unicolor) standing in grassland, Bandhavgarh National Park, Madhya Pradesh, India

Nick Garbutt / Two young male Indian sambars (Cervus unicolor) sparing, Bandhavgarh NP, India

Nick Garbutt / Indian sambar (Cervus unicolor) young stag, Sariska NP, Rajasthan, India.

ASHISH & SHANTHI CHANDOLA / Indian sambar {Cervus unicolor} female suckling young, Bandipur NP, Karnataka, India

Bernard Castelein / Indian sambar (Cervus unicolor) male in velvet growing new antlers, Ranthambore NP, Rajasthan, India

TJ Rich / Indian sambar deer {Cervus unicolour} in lake, Ranthambhore NP, Rajasthan, India

Tony Heald / Sambar [Cervus unicolor] male portrait, Bandhavgarh NP, Madhya Pradesh, India, March

Tony Heald / Sambar [Cervus unicolor] male portrait, Bandhavgarh NP, Madhya Pradesh, India, March

Tony Heald / Sambar [Cervus unicolor] male portrait, Bandhavgarh NP, Madhya Pradesh, India, March

Tony Heald / Sambar [Cervus unicolor] running, Bandhavgarh NP, Madhya Pradesh, India, March

Pete Oxford / Sambar deer (Cervus unicolor) male, Ranthambhore National Park. Rajasthan. India

Pete Oxford / Sambar deer (Cervus unicolor) male, Ranthambhore National Park. Rajasthan. India

Pete Oxford / Sambar Deer (Cervus unicolor) female by water, Gir Forest National Park. Gujarat, India

Bernard Castelein / Male and female Indian sambar (Cervus unicolor) feeding in lake, Ranthambore NP, India

Nick Garbutt / Indian sambar deer stag {Cervus unicolor} feeding in lake, Ranthambhore NP, Rajasthan, India

Ana Lockwood / Indian sambar deer {Cervus unicolor} feeding in lake with Indian roller sitting on back, Ranthambhore NP, Rajasthan, India

Ana Lockwood / Indian sambar deer {Cervus unicolor} drinking at waterhole, Sariska NP, Rajasthan, India

Gertrud & Helmut Denzau / Silhouette of Indian sambar feeding in water (Cervus unicolor) Ranthambhore NP, Rajasthan, India

Bernard Castelein / Indian sambar feeding in lake {Cervus unicolor} Ranthambhore NP, Rajasthan, India

Nick Garbutt / Indian sambar {Cervus unicolor} female browsing on bush, Ranthambhore NP, India

Bernard Castelein / Male Indian sambar deer in vegetation {Cervus unicolor} Kaziranga NP, Assam, NE India

Nick Garbutt / Indian sambar female {Cervus unicolor} Ranthambhore NP, India

Bernard Castelein / Indian sambar (Cervus unicolor) male with India tree pie birds, Ranthambore NP, Rajasthan, India

Bernard Castelein / Indian sambar (Cervus unicolor) feeding in water, Ranthambore NP, Rajasthan, India

Bernard Castelein / Indian sambar (Cervus unicolor) male feeding in water with Pond heron on its back, Ranthambore NP, Rajasthan, India

Bernard Castelein / Indian sambar up to its neck in water feeding in lake (Cervus unicolor) Ranthambore NP , Rajasthan, India

Hermann Brehm / Indian Sambar deer {Cervus unicolor} male and female pair feeding on water plants, India

Bernard Castelein / Male Indian sambar male (Cervus unicolor) with house crows, Ranthambore NP. Rajasthan, India

Bernard Castelein / Male Indian sambar male (Cervus unicolor) feeding in water with egret resting on back, Ranthambore NP, India

Jean-Pierre Zwaenepoel / Indian sambar deer {Cervus unicolor} female in grass, Ranthambore NP, Rajasthan, India

Tony Heald / Indian sambar {Cervus unicolor} female pair in grassland, Bandhavgarh NP, India.

Bernard Castelein / Indian sambar deer {Cervus unicolor} with House crows {Corvus splendens} Keoladeo Ghana, Bharatpur, India

Bernard Castelein / Indian sambar deer {Cervus unicolor} Keoladeo Ghana NP, Bharatpur, Rajasthan, India

Patricio Robles Gil / Indian sambar in wetlands {Cervus unicolor} India

Patricio Robles Gil / Indian sambar {Cervus unicolor} with Myna birds {Acridotheres tristis} on its back, India

ASHISH & SHANTHI CHANDOLA / Indian sambar {Cervus unicolor} fawn, Bandipur NP, Karnataka, India

Toby Sinclair / Indian sambar {Cervus unicolor} & Painted storks, Ranthambhore NP, Rajasthan, India

Bernard Castelein / Indian sambar {Cervus unicolor} in lake with Great Egret standing on its back. Ranthambore NP, Rajasthan, India

Anup Shah / Indian sambar deer {Cervus unicolor} grazing from tree Kaziranga NP, Assam, India

Anup Shah / Pair of Indian sambar {Cervus unicolor} at water edge Kaziranga NP, Assam, India

Nature Production / Indian Sambar {Cervus unicolor} with heron on its back, Kaziranga National Park, Assam, India