Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A worldwide community photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Nilgai

Boselaphus tragocamelus

Description:

The nilgai (Boselaphus tragocamelus), sometimes called nilgau, is the largest Asian antelope. It is one of the most commonly seen wild animals of central and northern India, often seen in farmland or scrub forest. The mature male appears ox-like and is also known as the blue bull. A blue bull is called a nil gai or nilgai in India, from nil meaning blue and gai meaning a bovine animal (literally 'cow'). It is also present in parts of southern Nepal and eastern Pakistan. The species has become extinct in Bangladesh. It was known as the nilghor (nil = blue, ghor = horse) during the rule of Aurangzeb in the Mughal era. It is the only member of genus Boselaphus.

Habitat:

Nilgai stand 1.1 to 1.5 m (3 ft 7 in to 4 ft 10 in) at the shoulder and measure 1.7 to 2.1 m (5 ft 7 in to 6 ft 10 in) in head-body length, with a 45- to 50-cm (18- to 20-in) tail. Males are larger than females, weighing 109 to 288 kg (240 to 635 lb), with a maximum of 308 kg (679 lb), compared with the adult female weight of around 100 to 213 kg (220 to 470 lb). The nilgai has thin legs and a robust body that slopes down from the shoulder. They show marked sexual dimorphism, with only the males having horns. Adult males have a grey to bluish-grey coat, with white spots on the cheeks and white colouring on the edges of the lips. They also have a white throat bib and a narrow white stripe along the underside of the body that widens at the rear. The tips of the long, tufted tail and of the ears are black. They also possess a tubular-shaped "pennant" of long, coarse hair on the midsection of the throat. The males have two black, conical horns, arising close together just behind the eyes. The horns project upwards, but are slightly curved forward; they measure between 15 and 24 centimetres (5.9 and 9.4 in) in a fully grown adult. Although the horns are usually smooth, in some older males, they may develop ring-shaped ridges near the base. In contrast, females and young are tawny brown in colour, although otherwise with similar markings to the male; they have no horns and only a very small "pennant". Both sexes have an erect mane on the back of the neck, terminating in a bristly "hog-tuft" just above the shoulders.

Notes:

Spotted at Blackbuck National Park at Velavadar

Species ID Suggestions



Sign in to suggest organism ID

No Comments

Nilda M. Mena
Spotted by
Nilda M. Mena

India

Spotted on Sep 29, 2013
Submitted on Sep 29, 2013

Related Spottings

Nilgai Nilgai( Female) Nilgai Nilgai

Nearby Spottings

Jungle Cat Spotting Spotting Spotting
Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team