Avifauna of the Thredbo Valley, Kosciusko National Park

Abstract

Observations on the avifauna of Thredbo Valley in Kosciusko National Park were made from June 1969 to June 1972. One hundred and four species in seventy-six genera were recorded. Monthly totals varied according to season, rising from a winter low of thirty-three species to a spring high of sixty-nine. The monthly variation was a response to the harsh climate, combined with the use of the Valley as a corridor of movement round the treeless alpine zone. Four categories of resident birds were represented. Numbers of species declined with increasing altitude, primarily because the variety of habitats declined. Forty-eight per cent of species bred in the Valley. Man has altered the habitats of the Valley and so the avifauna. Recommendations relating to management and conservation of avifauna are discussed.