Seasonal differences in bird counts in forests near Reefton, South Island, New Zealand

Abstract

Birds were counted in four forest areas every second month of a year to determine broad habitat preferences of the different species and the factors affecting the numbers counted. Most species showed marked seasonal changes in conspicuousness. The differences between the numbers of birds counted by different observers were generally small compared with the differences between areas and seasons. Many species were more abundant in the valley-bottom forest than in the two hill-country forests; only a few species preferred high-altitude forest. The preferred habitat of some species changed with season. The implications of these findings for bird conservation in Westland forests are discussed.