Thiruvananthapuram: The population of house
sparrows is fast declining due to dangers posed to their
survival by a host of factors, including mobile phone towers,
prompting a UK-based forum to enlist the tiny birds in the
`Red List` of endangered avian species.
Britain’s Royal Society of Protection of Birds has enlisted
the house sparrows (Passer domesticus) in the `Red List on
the basis of the findings of researchers in different parts of
the world including those from India.
Recent studies had shown that the population of house
sparrows was on the decline in many parts of the country,
including Kerala, said Dr Sainudeen Pattazhy, Associate
Professor of Zoology at SN College at Kollam.
This trend was alarming especially in the urban areas due
to a host of factors including "unscientific proliferation of
mobile towers," Pattazhy, who conducted a study on the
The study conducted during 2008-2009 in railway stations,
foodgrain ware houses and human dwellings had shown that at
present these small birds had virtually vanished in Kerala.
Many reasons could be cited for the situation like
introduction of unleaded petrol, the combustion of which
produces compounds such as methyl nitrite, a compound highly
toxic for insects, the researcher said.