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Diet and breeding of White-bellied Sea-Eagles Haliaeetus leucogaster in subtropical river habitats in the Northern Territory, Australia

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Category: Issue 2

Author(s): Laurie Corbett, Tony Hertog

Diet and breeding of White-bellied Sea-Eagles Haliaeetus leucogaster were studied at two sites in the subtropical Northern Territory of Australia over seven years: at Mary River (20 territories), characterised by a permanently high water level; and the Alligator Rivers at Kapalga (20 territories), characterised by high wet-season and low dry-season water levels. Overall diet comprised […]


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Euthanasia of pest sturnids in nestboxes

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Category: Issue 2

Author(s): Christopher Tidemann, Kate Grarock, Daryl King

Nestboxes are commonly used as a research tool or for enhancing habitat quality for native hollow-dependent wildlife, but these objectives can be compromised if boxes are occupied by feral species, such as Common Myna Sturnus tristis and Common Starling S. vulgaris. Mynas and starlings exclude other potential nestbox users by actively harassing them, and by […]


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Photographic identification of bands confirms age of breeding Carnaby’s Black Cockatoos Calyptorhynchus latirostris

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Category: Issue 2

Author(s): Denis Saunders, Rick Dawson, Peter Mawson

In September 2009, three banded female Carnaby’s Black Cockatoos Calyptorhynchus latirostris were identifi ed at their nest sites by reading their leg bands. They had been banded as part of a 40-year study of the biology of a black cockatoo population at Coomallo Creek in the northern wheatbelt of Western Australia. Two techniques were employed […]


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Clutch predation in relation to mean vegetation height at Northern Mallards’ Anas platyrhynchos nests

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Category: Issue 2

Author(s): Fayaz Ahmad Ahanger, Mustafa Shah, Ulfat Jan, Bilal Bhat

Northern Mallards Anas platyrhynchos are the only species of wild duck currently breeding in Kashmir. In fact, Kashmir is the only territory within India where they breed (Bates and Lowther 1952). They are winter visitors to the valley of Kashmir, where they occur in huge numbers in wetlands and lakes. In spring (March and April) […]


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An aberrant plumaged Chestnut Teal Anas castanea with a white neck-ring

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Category: Issue 2

Author(s): Guay

Plumage aberrations are not uncommon in wild birds (e.g. Gross 1965; Hosner and Lebbin 2006). These abnormalities can take on many forms, but albinism and leucism (sometimes wrongly called partial albinism) are the most common plumage aberrations in birds (Sage 1963; Gross 1965). Albinism is the complete loss of all pigments in both plumage and […]


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Tool use by the Sandstone Shrike-thrush Colluricincla woodwardi

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Category: Issue 2

Author(s): David Lindenmayer, Karen Viggers

Tool use is widespread in primates but relatively rare in other groups of animals (Beck 1980). Within birds, tool use has been recorded in a range of species. Bark chips are used by the Brownheaded Nuthatch Sitta pusilla as part of foraging for insect prey on the island of Grand Bahama (Hayes et al. 2004). […]


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