The great Indian bustard may not be as well known as the peacock (India’s national bird) but it’s just as impressive, says Sumit Dookia, a conservation ecologist who has been studying the bird for close to a decade. The massive bird, which weighs between 15kg and 18kg, is one of the biggest flying birds in India.
It once had a prolific presence in the country and was found in at least 11 states, but today, its population is confined to Rajasthan, while a handful might be spotted in the southern state of Karnataka and the western state of Gujarat.
The shy bird plays an important role in the food chain by preying on rodents, snakes and other pests and is also the state bird of Rajasthan, where it is called ‘Godawan’ by locals.
But some of the bird’s unique evolutionary traits are clashing with human interventions, making it vulnerable to extinction.
For one, the great Indian bustard has good peripheral vision but poor frontal vision, making it difficult for them to spot power lines until they fly too close to them. Their large size makes it difficult for them to quickly change their flight path and they end up colliding with the cables and dying.
“Their vision could have developed like this as the bird spends a large amount of time on land,” says Mr Dookia. It also lays its eggs on the ground, without a nest or any other form of protection except for the watchful eye of the mother and this might have caused it to develop good side vision, he adds.
The great Indian bustard also has unique breeding habits. The bird lays just one egg at a time and spends the next two years caring for its offspring.
“Since it reaches maturity at around four years of age and lives for 12-15 years, it lays just about four-five eggs in its lifetime and many of these eggs are destroyed by predators,” Mr Dookia says.
