Mandarin ducks, considered among the world's most beautiful birds, have declined in their native Asian range while introduced populations in Europe have grown, creating a complex conservation and welfare picture.
Mandarin duck welfare in introduced European populations is generally good - introduced birds without predator pressure and with access to food-rich riverine habitats thrive. Native Asian populations face welfare challenges from habitat loss that reduces nesting cavity availability and food resources. Individual welfare for any cavity-nesting duck depends on finding suitable nest sites, which nest box programs directly provide. The cultural significance of mandarin ducks in East Asian tradition creates a conservation opportunity by aligning welfare with cultural values in communities where they are native.