The Bridled Tern breeding population on Penguin Island has increased steadily over the last decade as evidenced by an expansion in the area occupied by the nesting birds. In an established sub-colony area, individuals which were five to seven years of age or older made up most of the breeding pairs. Three-year olds, which were […]
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Showing 12 of 1617 documents
Showing 12 of 1617 documents
Bird in the Hand: BLUE-FACED HONEYEATER Entomyzon cyanotis
Posted: 09/08/2021FOOTEDNESS IN THE GLOSSY BLACK-COCKATOO: SOME OBSERVATIONS AND A REVIEW OF THE LITERATURE WITH A NOTE ON THE HUSKING OF Allocasuarina CONES BY THIS SPECIES
Posted: 09/08/2021A survey of the literature on the use of a particular foot to hold food by Australian parrots suggests that most of the few species that have been studied are left-footed. Most, but not all, Glossy BlackCockatoos Calyptorhynchus lathami observed have been left-footed. I present some field observations on the footedness of this species; all […]
Read MoreBook Review: Australian Grass Parakeets
Posted: 09/08/2021VARIATION IN THE CALLS OF MIGRATORY AND SEDENTARY SUBSPECIES OF SILVEREYE
Posted: 09/08/2021Variation in the three contact calls of the Silvereyes in the Brisbane region were compared to those of a sedentary subspecies in the Capricorn-Bunker group of islands in the Great Barrier Reef. Brisbane males within a flock or holding territories in the same area used the same variable call, whereas the Capricorn subspecies call showed […]
Read MoreSURVEYS OF CAPE BARREN GEESE Cereopsis novaehollandiae IN WESTERN AUSTRALIA, 1987-1992
Posted: 09/08/2021Cape Barren Geese were counted on islands along the south coast of Western Australia between the summers of 1987-88 and 1991-92. Four surveys were conducted in summer and one in winter. They covered islands from the Recherche Archipelago westward to Eclipse Island. Geese were found on 50 islands, of which 48 were in the Recherche […]
Read MoreEFFECT OF PATAGIAL TAGS ON CATTLE EGRETS
Posted: 09/08/2021The effect of patagial tags is evaluated for 3 265 Cattle Egrets banded and tagged as nestlings over seven seasons. Tagging did not affect fledging ability of nestlings, nor did tagging operations increase nestling mortality in the colony. Mortality of first year birds was comparable to that recorded in other studies, but adult mortality appeared […]
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