Food robbing by Silver Gulls on feeding Bar-tailed Godwits was studied in Westernport Bay, Victoria. The foraging success of the godwits was reduced by 36% when gulls were attempting to steal their prey. This reduction in foraging efficiency of the godwits appears to affect their feeding dispersion.
Many members of the fruit-dove genus Ptilinopus, of which there are 47 species (Goodwin 1967), have an emarginated outer primary, while in others the tip of the primary tapers to a point. The shape of this primary has been used as a taxonomic character in subdividing the genus.
A five-day study of the time of roosting and awakening of 13 species of birds was made near Booligal, N.S.W. in May 1975. It is probable that the time of roosting and awakening varies as a function of light intensity, and evidence was found of an anticipatory period between wakening and leaving the roost in […]
Results obtained during banding of Eurasian Coot Fulica atra in Victoria (3,177), South Australia (413) and New South Wales (32) between 1953 and 1977 are summarised, as are details of subsequent recoveries. Coots on the lake system of the Serendip Wildlife Research Station, Victoria (where trapping was more regular) were also counted between September 1969 […]