CBSE Class 12-science Answered

• Correct options are vulture and great Indian bustard.
• AS per IUCN red list, Pink headed duck is possibly extinct in India.
• Vulture and Great Indian Bustard are critically endangered.
• However, the population of crow is stable in India.

Great Indian Bustard:

Scientific name: Ardeotis nigriceps

Classification:

Kingdom – Animalia

Phylum – Chordata

Class – Aves

Order – Otidiformes

Family – Otididae

This bird is native to Pakistan and India.

Habitat:

• It inhabits arid and semi-arid grasslands.
• It requires regions of high insect resource and less grazing.
• The bird nests in open ground.
• It lays only one or at the most two eggs in a year.
• Widespread agricultural expansion is the reason for its habitat loss

Vulture:

Scientific name: Gyps indicus

Classification:

Kingdom – Animalia

Phylum – Chordata

Class – Aves

Order – Accipitriformes

Family – Accipitridae

It is native to Pakistan and India

Habitat:

• It is found in cities, villages, near cultivated areas and also in open and wooded areas.
• It nests in colonies on cliff; if cliffs are absent then it nests on trees.
• It is a scavenger; hence play an important role in the ecosystem.
• The vultures breed in south-east Pakistan, peninsular India, south of the Gangetic plain, north to Delhi, east through Madhya Pradesh, south to the Nilgiris, and occasionally further south.
• Use of drug diclofenac to treat domestic livestock has been found as a threat for the population of vultures.
• This drug causes renal failure in vultures causing high mortality rate.
• Their catastrophic decline was first observed in Keoladeo National Park, India