▁In ▁the ▁wet lands ▁around ▁the ▁est u ary ▁nest ing ▁birds ▁include ▁red - cr ested ▁po ch ard ▁( Net ta ▁r uf ina ), ▁little ▁bit tern ▁( I x ob ry chus ▁min ut us ), ▁little ▁eg ret ▁( E gre tta ▁gar zet ta ) ▁and ▁pur ple ▁her on ▁( Ar de a ▁pur p ure a ), ▁mar sh ▁har rier ▁( Circ us ▁aer ugin os us ], ▁ ▁Mont agu ' s ▁har rier ▁( Circ us ▁py ag urg us ), ▁black - wing ed ▁st ilt ▁( H im ant opus ▁him ant opus ), ▁col la red ▁pr atin cole ▁( G lare ola ▁pr atin cola ) ▁and ▁little ▁t ern ▁( S tern ula ▁alb if rons ). ▁ ▁While ▁the ▁associated ▁red bed s ▁contain ▁great ▁re ed ▁war b ler ▁( Ac ro ce phal us ▁ar und in ace us ), ▁Sav i ' s ▁war b ler ▁( Loc ust ella ▁l us cin io ides ) ▁and ▁other ▁war bl ers . ▁The ▁nearby ▁fields ▁have ▁stone - cur le w ▁( B ur hin us ▁o edic nem us ) ▁and ▁cal andra ▁l ark ▁( M el an oc ory pha ▁cal andra ) ▁bre ed ▁on ▁adjacent ▁far ml and . ▁Little ▁b ust ard ▁( T etra x ▁t etra x ) ▁occurs ▁all ▁year ▁but ▁is ▁more ▁numerous ▁in ▁winter . ▁ ▁R apt ors ▁which ▁may ▁be