Survey of the distribution and abundance of blue duck (whio) in Kahurangi National Park 2009
Published:
July 2010
Blue duck/whio (Hymenolaimus malacorhynchos) are nationally endangered. This survey compares data to a previous one done over the summer of 1999/2000 to estimate the population in a number of the rivers in the north west catchments of Kahurangi National Park.