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From tiled roofs to concrete skylines, India’s changing cities have pushed sparrows out of their natural habitat. Here’s what scientists say is causing their decline.
The house sparrow, which was once a common sight in Indian homes and neighbourhoods.
There was a time when in most Indian homes the day started not with the buzz of smartphones or the rumble of traffic, but with the chirping of sparrows. They sat on window grills, made nests under tile roofs, frolicked in courtyards in search of a few grains of rice, and gathered in bustling markets where sacks of wheat and pulses lay open.
Their presence was so common that people rarely thought twice about them. They were simply a part of everyday life, woven into the rhythm of the Indian morning. For generations, children have grown up seeing sparrows nesting in ventilators and roof vents, while grandparents would scatter handfuls of grains for them before starting their day.
Unlike peacocks, parrots or kingfishers, sparrows were not admired for their amazing beauty. They were loved because they lived with us. They were small, gray companions of the neighboring birds, who had quietly adapted to human life over thousands of years.
Today, that familiar soundtrack has faded from many Indian cities. In place of sparrows, apartment balconies are often occupied by pigeons, while glass-clad buildings and concrete skylines dominate neighborhoods that were once dotted with trees and traditional houses.
Ask anyone who grew up in the 1980s or 1990s about sparrows, and they’ll probably remember seeing dozens of them every day. Ask many children growing up in urban India today, and they may recognize this bird only from school books or photographs.
The extinction of the sparrow has happened so gradually that many people did not even know about its occurrence. There was no dramatic incident, no sudden drop in numbers. Instead, as cities expanded, lifestyles changed, and urban landscapes changed, declines quietly unfolded for decades.
Yet the absence of the bird that once lived so closely with humans raises an important question: Where have all the sparrows gone?
The answer is more complex than it seems. This is not just the story of a bird in decline, but also the story of how Indian cities have evolved over the last few decades. The extinction of the sparrow reflects changes in architecture, agriculture, food systems, and urban planning. In many ways, their decline reflects the environmental costs of rapid urbanization.
The bird that chose to live next to humans
Unlike many wild birds, which avoid human settlements, the house sparrow (Passer domesticus) has spent thousands of years living alongside people. Scientists believe that the sparrow’s association with humans began about 10,000 years ago, when agriculture emerged in various parts of the world.
As people began to settle in villages and grow crops, sparrows found abundant supplies of food in harvested grains and insects began to be attracted to the fields. Human settlements also provided safe nesting sites, allowing the species to thrive.
This relationship became especially strong in India. Traditional Indian homes have unintentionally created ideal habitats for sparrows. Clay tiled roofs, exposed wooden beams, ventilators, small cracks in walls and open courtyards provide countless nesting sites.
Grain was often stored in sacks or open containers in kitchens, while neighborhood flour mills and local markets scattered enough seed to feed an entire herd. Insects flourished in gardens, animal sheds and fields, providing protein-rich food to the sparrowhawks. Without realizing it, generations of Indians built cities that worked for both people and birds.
That close relationship also made the sparrow a part of India’s cultural identity. Known as Gauraiya in Hindi, Chimani in Marathi, Kuruvi in ​​Tamil, Gubbachi in Kannada and many other regional names, this little bird appears in nursery rhymes, folk tales and children’s stories across the country.
When India’s cities changed, sparrows lost their homes.
The transformation of Indian cities in the last three decades has been remarkable. Rapid urbanization has led to better infrastructure, taller buildings and modern housing, but it has also changed the environment in such a way that it has become difficult for the sparrow to survive.
Traditional houses with tiled roofs and naturally ventilated designs have increasingly replaced concrete apartment complexes and glass buildings. Modern structures are built to be energy-efficient and weather-resistant, leaving very few cracks, cavities or ledges where sparrows can build nests. Architects are considering improvements to the design, which may have inadvertently removed one of the bird’s most important needs, a safe place to raise its young.
The problem has further increased due to depletion of open spaces. Courtyards have been replaced by parking lots, gardens have shrunk and native trees have made way for roads and commercial development.
The dense vegetation and bushes that once sheltered insects and provided cover for birds are becoming increasingly rare, leaving sparrows with fewer places to forage and breed.
hidden food crisis
The decline in sparrow numbers does not just mean the loss of nesting sites. It’s also about losing food.
Adult sparrows eat primarily seeds and grains, but their young depend almost entirely on insects during the first few weeks of life. Caterpillars, aphids, beetles and other small insects provide essential proteins for healthy growth. Without this rich diet, young sparrows struggle to survive.
Over the years, insect populations have declined in many parts of the world due to pesticide use, habitat destruction, and changing agricultural practices. The urban landscape has also changed.
Ornamental plants and manicured lawns have increasingly replaced native vegetation that encourages insects. The decline of clean roads, canned food, and traditional grain markets has further reduced the availability of the food that sparrows once relied upon.
The result is a slow but significant chain reaction. Less worms means less healthy chicks. Fewer chicks develop into adults. Over time, the local sparrow population begins to decline – not because of sudden deaths, but because each new generation becomes smaller than the previous one.
Were mobile towers really responsible?
Perhaps no explanation for the sparrow’s extinction has sparked as much public debate as that of mobile phone towers. For years, the decline in sparrow numbers was widely blamed on electromagnetic radiation from telecommunications infrastructure. The idea attracted huge attention from the public and even inspired awareness campaigns across India.
However, scientists now say the evidence does not support the claim that mobile towers are the primary cause of bird declines. While research on the biological effects of electromagnetic radiation continues, most ornithologists agree that habitat loss, reduced food availability, modern architecture, pesticide use, and rapid urbanization are far more important factors.
Experts argue that the mobile tower debate has overshadowed the deeper environmental changes happening around us. By focusing on one possible cause, people have often ignored the widespread transformation of cities, which has steadily removed the conditions the sparrow needs to survive.
A decline that reflects the health of our cities
Despite concerns, the house sparrow has not completely disappeared from India. The International Union for Conservation of Nature (IUCN) continues to classify it as a species of least concern globally because it is widespread throughout most of its range. However, the picture in India is more nuanced.
The State of India’s Birds 2025 report classifies the house sparrow as a medium priority species for conservation. While its long-term national population trend remains uncertain, its current annual trend indicates continued decline in many areas. The researchers also noted that the bird’s fate varied widely across the country. The sparrow is relatively common in many rural areas and small towns, but has become quite rare in many densely populated urban centres.
This distinction is important because the story of the sparrow is not one of extinction but of changing landscapes. A bird that evolved to live alongside humans is finding it increasingly difficult to survive in the cities we have built.
Its decline is not just about the loss of a familiar species; It serves as a reminder that rapid urban growth can quietly reshape ecosystems in ways that often go unnoticed.
For millions of Indians, the silence left by the sparrow is more than just nostalgia. It’s a sign that the neighborhoods we grew up in and the natural world that once thrived within them have been profoundly changed.
Cities can help sparrows recover by providing food, water, and artificial nests. In Bharatpur, an initiative called ‘Ek Ghar Gauraiya Ka’ has successfully planted thousands of artificial nests, providing homes to more than 2000 sparrows.
Delhi, India, India
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