The Whio also has large webbed feet so it can walk around and swim in fast moving waters.
The upper bill has a semicircular fleshy lip that overlaps the lower bill the fleshy lip helps the Whio scrape insect larvae off rocks without ruining its bill.
The Whio are are mainly active during early morning and late evening periods during the day they hide in log jams , caves and other such places some populations have almost adopted a nocturnal existence.
Blue ducks defend their territory all year round the size of each pairs territory is around 1.5km.
They eat insect larvae including cassidyfly,mayfly,and stonefly larvae.
When people are walking their dog by the river they are being asked to put their dog on a leash just in case you are near some whio or are in their territory.
The people that are rescuing and releasing whio into the wild check on the whio they have let out into the wild every month as the bird is becoming safer in the wild.
If you spot a Whio watch from a distance and give them some space