Daybreak in the city. The brief quiet of the night gives way to the low rumble of cars, trucks and industry, but one sound is notable by its absence.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/city-songbirds-are-changing-their-tune
[2] http://admin.indiaenvironmentportal.org.in/category/author/ed-yong
[3] http://admin.indiaenvironmentportal.org.in/category/journal/acid-news
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecology
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/noise-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-habitat
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urbanisation
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/birds
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research