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Variation in the calls of migratory and sedentary subspecies of Silvereye.

Category: Issue 1
Author(s): Penelope Slater
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Variation 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 […]

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Surveys of Cape Barren Geese Cereopsis novaehollandiae in Western Australia, 1987-1992.

Category: Issue 1
Author(s): Shaughnessy and Haberley
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Cape 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 […]

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Effect of patagial tags on Cattle Egrets

Category: Issue 1
Author(s): Maddock and Geering
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The 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 to […]

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