Press Esc to close
Wednesday 01 April 2015
News updated at 8:18 AM IST
Weather
Max: 33°C
Min : 22.3°C
In Bengaluru
Sunny day

House sparrow listed as an endangered species

Last updated: 24 June, 2010
Thiruvananthapuram,Jun 24 (PTI)

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 subject, told reporters

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. Widespread use of garden pesticides, which kills insects that are vital diet of new-born sparrows, disappearance of open grass lands, rising temperature and avian-unfriendly modern architecture had also grievously harmed the sparrows.

However, according to Pattazhy, unscientific proliferation of mobile phone towers had in recent times emerged as a major factor in the decline of house sparrow population.
"These towers emit a frequency of 900-1800 MHz, continuous penetration of EMR (electromagnetic radiation) through the body of birds would affect their nervous system and their navigational skills. They become incapable for navigation and foraging. The birds which nests near towers are found to leave the nest within one week," he said.

"One to eight eggs can be present in a clutch. The incubation lasts for 10 to 14 days. But the eggs which are laid in nests near towers failed to hatch even after 30 days. The conservation of House sparrows is essential as it had proved to be well suited for studies of general biological problems and pest control," Pattazhy said.

Based on his findings, Pattazhy submitted a memorandum to the Union Government and IUCN (International Union for Conservation of Nature and Natural Resources) last year seeking steps to protect this birds from extinction, following which the government ordered a three year project to investigate into the decline of house sparrows.


Go to Top

Photo Gallery
Tourist being entertained by a Rajasthani artist...

Tourist being entertained by a Rajasthani artist...

Stranded trucks at the Jammu - Srinagar highway due to heavy rain in Jammu...

Stranded trucks at the Jammu - Srinagar highway due to heavy rain in Jammu...

A man walks on a snow-ladden field after a fresh spell of snowfall in Kashmir...

A man walks on a snow-ladden field after a fresh spell of snowfall in Kashmir...

Kashmiri man carries a pillow as he walks along the road at Ledhan village...

Kashmiri man carries a pillow as he walks along the road at Ledhan village...

Self-Defense Forces personnel prepare tp receive Indian Defense Minister Manohar Parrikar...

Self-Defense Forces personnel prepare tp receive Indian Defense Minister Manohar Parrikar...

Vice Admiral P Murugesan inspects guard of honour...

Vice Admiral P Murugesan inspects guard of honour...

A youth in the flood-hit Pampore area of Srinagar on Tuesday...

A youth in the flood-hit Pampore area of Srinagar on Tuesday...

A pair of parrot atop a tree in New Delhi...

A pair of parrot atop a tree in New Delhi...

Aircrafts of The Global Stars team of British Aerobatics Champions perform during rehearsals...

Aircrafts of The Global Stars team of British Aerobatics Champions perform during rehearsals...

Aircrafts of British Aerobatics Champions perform during rehearsals on the eve of the Gujarat Aero..

Aircrafts of British Aerobatics Champions perform during rehearsals on the eve of the Gujarat Aero..

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523