white herons, maori name kotuku, mating at waitangiroto nature reserve, new zealand

adult alba aotearoa ardea avian beak behaviour bill bird birds breeding coast colony common conservation copulation critically department doc egret endangered feathers feet great heron herons island katuku kotuku kåtuku large legs longnecked maori mating migratory mounting name native nature nest nesting okarito plumage rare reserve sanctuary south threatened waitangiroto west westland whataroa white wings zealand