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  • Aggression by Australian Magpies Gymnorhina tibicen toward Human Intruders

    Author(s)
    Cilento, NJ
    Jones, DN
    Griffith University Author(s)
    Jones, Darryl N.
    Year published
    1999
    Metadata
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    Abstract
    The pattern of aggressive behaviour by Australian Magpies Gymnorhina tibicen toward human and heterospecific intruders was studied at rural and suburban sites in the Brisbane area during the 1994–95 breeding season. Both non-intrusive observations and experimetal intrusions were used. All observations were based on breeding pairs. Preliminary observations of suburban pairs indicated that some were consistently aggressive toward humans (‘aggressive’) while others were not (‘non-aggressive’). In virtually all cases (97.5%), only males were involved in attacking humans; however, females were equal or more prone to attacking ...
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    The pattern of aggressive behaviour by Australian Magpies Gymnorhina tibicen toward human and heterospecific intruders was studied at rural and suburban sites in the Brisbane area during the 1994–95 breeding season. Both non-intrusive observations and experimetal intrusions were used. All observations were based on breeding pairs. Preliminary observations of suburban pairs indicated that some were consistently aggressive toward humans (‘aggressive’) while others were not (‘non-aggressive’). In virtually all cases (97.5%), only males were involved in attacking humans; however, females were equal or more prone to attacking non-human intruders as males. None of the rural Australian Magpies reacted to human intruders, although they attacked heterospecific intruders as frequently as did aggressive birds. The patterns of attacks during the breeding season showed a peak in the late nestling phase, immediately before the fledglings left the nest.
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    Journal Title
    Emu - Austral Ornithology
    Volume
    99
    Issue
    2
    DOI
    https://doi.org/10.1071/MU99011
    Subject
    Ecology
    Zoology
    Publication URI
    http://hdl.handle.net/10072/122430
    Collection
    • Journal articles

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