Saroornagar Lake
... that a few years after the ecological restoration of Hyderabad's Saroornagar Lake in 2003, migratory birds returned to the lake in large numbers?
... that a few years after the <a href="./Restoration_ecology" id="mwDt8" rel="mw:WikiLink" title="Restoration ecology">ecological restoration</a> of <a class="mw-redirect" href="./Hyderabad,_India" id="mwDuA" rel="mw:WikiLink" title="Hyderabad, India">Hyderabad</a>'s <b id="mwDuE"><a href="./Saroornagar_Lake" id="mwDuI" rel="mw:WikiLink" title="Saroornagar Lake">Saroornagar Lake</a></b> in 2003, <a href="./Bird_migration" id="mwDuM" rel="mw:WikiLink" title="Bird migration">migratory birds</a> returned to the lake in large numbers?