As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Tuesday, 15 March 2016

DU to study how pollution affects birds’ sound

Last Updated: Monday, March 7, 2016 - 06:19

New Delhi: A project to study the impact of pollution on the acoustic quality of birds is being undertaken at the National Zoological Park.

The project is being undertaken by the students of Delhi University at the zoo that houses around 642 birds of 51 different species (as per 2015 inventory report).

"Delhi zoo with its rich diversity of birds and animals has always been a destination for various environmental projects. The avian project will record the sounds of birds here in order to gauge the impact of pollution on their acoustic quality," a zoo official said.

Ankita Das, final year Environmental Science student of the DU who is part of the project, says, "Birds generally produce low frequency sounds so that these signals travel long distances and reach their mates or other birds. But due to the rising pollution level, there has been a sharp increase in their frequency levels."

"Delhi is only second to Kenya with a rich diversity of birds despite having high levels of noise pollution. The project tries to decipher the connection between pollution and acoustic quality of birds further," she told PTI.

Das explains how human settlement and environment quality of an area affect the acoustic level of birds.

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