Male Hooded Robins Melanodryas cucullata displayed more aggression towards conspecifics than did females, and may be involved in more aggression with other species. Intraspecific aggression was infrequent, with 2.5 acts per hour, probably because the species occurs at low density and most groups have few neighbours. Most interspecific aggression was directed at ecologically similar ground […]
Bird species and numbers on a small estuarine wetland in south-western Victoria were recorded for six years from 1990 to 1995 inclusive. Observations were made by telescope at least once daily and the maximum number of birds was recorded each half-month. Note was taken of the water level. Some seasonality and a preference for low […]
From 1988 to 1991, 15 to 37 teams of observers performed bi-annual, timed counts in 22 sub-areas of the County of Camden. Cumulatively, 92 observers counted 254,886 birds of 243 species. Data from these counts wore combined with data from similar counts in seven other sub-areas of the County of Camden from 1982 to 1987 […]
