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In recent years, India has seen a dramatic decline of house sparrow population and ornithologists have observed a sharp decline in house sparrow population. Population of house sparrow is fast declining due to danger posed to their survival by a host of factors, such as, lack of nesting sites due to modern architecture of building, lack of seed food, insect food and proliferation of cell phone towers. The aim of this paper is to provide a summary of the present status of the house sparrow population in different seasons and to investigate the possible causes for the decline of house sparrow in Sivakasi Taluk during December 2011 to December 2012. From the investigation it was found that there is a high abundance of sparrows was observed in hot weather season in all study sites than other seasons. In Naranapuram (190 ± 4.89) and Duraichamipuram (83.33 ± 0.94) were recorded high number of house sparrows. Moderate amount of sparrows were found in Kalayarkuruchi (40 ± 1.63), Anaiyur (34 ± 1.63) and Pudhukottai (27.66 ± 1.24). The sparrows were completely absent in Achankulam and Alankulam. From the result it was observed that the house sparrow population was found to be higher in the rural areas when compared to the urban areas in the selected study sites.
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Author(s): S BALAJI S BASKARAN MK RAJAN AND M PAVARAJ
Ornithologists, modern architecture of building, lack of nesting sites, abundance and sex ratio., Animal Physiology, Cell and molecular biology, Genetics, Biochemistry, Biotechnology, Bioinformatics, Microbiology, Immunology