ian ▁Mig rat ory ▁Water bird s ▁( AE WA ), ▁ ▁Convention ▁on ▁W et lands ▁of ▁International ▁Import ance ▁( R ams ar ) ▁and ▁Convention ▁on ▁Bi ological ▁D iversity ▁( CB D ) ▁and ▁development ▁ag encies ▁including ▁United ▁Nations ▁Environment ▁Program me ▁( UN EP ), ▁United ▁Nations ▁Development ▁Program me ▁( UND P ), ▁World ▁Bank ▁and ▁Asian ▁Development ▁Bank ▁( AD B ) ▁and ▁international ▁Non - g overn ment al ▁organizations ▁including ▁Bird Life ▁International , ▁World ▁Conserv ation ▁Union ▁( I U CN ), ▁World ▁W ide ▁Fund ▁for ▁Nature ▁( W WF ) ▁and ▁W et lands ▁International ▁who ▁all ▁co oper ate ▁on ▁regional ▁and ▁national ▁wild life ▁conservation . ▁ ▁Regional ▁plans ▁complement ▁actions ▁that ▁are ▁being ▁undert aken ▁by ▁national ▁govern ments ▁to ▁promote ▁conservation . ▁Several ▁countries ▁have ▁well ▁established ▁protected ▁areas ▁to ▁con serve ▁important ▁habit ats ▁for ▁mig rat ory ▁water bird s . ▁Bang l adesh ▁ ▁According ▁to ▁the ▁R ams ar ▁definition , ▁more ▁than ▁two - third s ▁of ▁the ▁country ' s ▁land mass ▁may ▁be ▁class ified ▁ ▁as ▁wet lands . ▁It ▁is ▁a ▁country ▁domin ated ▁by ▁wet land ▁including ▁est u aries , ▁mang ro ve ▁sw amps ▁namely ▁the ▁Sund ar b ans , ▁fresh water ▁ ▁mar sh es ▁such ▁as ▁ha or , ▁sw amps ▁and ▁rivers . ▁There ▁are ▁about ▁ 6 2 8 ▁bird ▁species ▁in ▁Bang l adesh , ▁of ▁which ▁