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Taken 29-Nov-07
Visitors 15

16 of 356 photos
Categories & Keywords

Subcategory Detail:
Keywords:Blue Duck, Fiordland, Location, New Zealand, New Zealand wildlife, Whio, Wildlife
Photo Info

Dimensions3492 x 1746
Original file size5.97 MB
Image typeJPEG
Color spaceAdobe RGB (1998)
Date taken30-Nov-07 05:04
Date modified17-Oct-11 10:43
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 20D
Focal length400 mm
Max lens aperturef/5.6
Exposure1/400 at f/5.6
FlashNot fired, compulsory mode
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 400
Metering modePattern
Blue duck pair

Blue duck pair

The Blue Duck (Hymenolaimus malacorhynchus), also known as Whio (Maori), are a highly specialized waterfowl, inhabiting turbulent high country rivers in New Zealand. The male makes a distinctive high-pitched aspirate sound – “whio”, contrasting with the guttural and rattle-like call of the female. They have a streamlined head and large webbed feet that enable them to feed in fast moving water. The upper bill has a thick semicircular, fleshy ‘lip’ that overlaps the lower bill allowing them to scrape off insect larvae that cling to rocks, without wear and tear. Like many of New Zealand’s endemic birds, the blue duck is struggling to survive in the face of introduced mammalian predation.