Is pollution affecting birds' sound? DU to study
![](http://admin.indiaenvironmentportal.org.in/files/birds_noise.jpg)
A project to study the impact of pollution on the acoustic quality of birds is being undertaken at the National Zoological Park.
Publication Date:
07/03/2016
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A project to study the impact of pollution on the acoustic quality of birds is being undertaken at the National Zoological Park.