The number of migratory birds is less this year due to scarcity of fish in the waterbodies and rampant hunting in the greater Khulna region of
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/fish-scarcity-hunting-affect-migratory-birds
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/bangladesh-observer-dhaka
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife