Common brushtail possum Trichosurus vulpecula evicts juvenile southern boobooninox novaeseelandiae from its nest-hollow

Gerald Olsen, Susan Trost

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    We describe conflict between a breeding pair of Southern Boobooks Ninox novaeseelandiae and several Common Brushtail Possums Trichosurus vulpecula that culminated in a possum entering the Boobook's nest-hollow and eating most of a clutch of eggs. However, one egg hatched, although a possum subsequently caused the young Boobook to fledge prematurely. After the juvenile could fly well, the Boobook family vacated the hollow-rich nesting patch for a foraging area that lacked hollows, where the juvenile reached independence. In the following year, the Boobooks nested again in the same tree but lost two clutches (in different hollows) to possums, which then occupied one of the hollows, before finally fledging two young from a third hollow (in a different tree) ~2 months later than normal. This hollow had been used earlier in the season by Sulphur-crested Cockatoos Cacatua galerita, which harassed the incubating Boobook and tried to enter the hollow. Competition for increasingly scarce hollows, by some species which are already abundant or are becoming more so, may be a factor in the recent decline of Boobooks.
    Original languageEnglish
    Pages (from-to)46-52
    Number of pages7
    JournalAustralian Field Ornithology
    Volume26
    Publication statusPublished - 2009

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    Trichosurus vulpecula
    nest
    nests
    egg
    fledging
    breeding
    sulfur
    tree cavities
    egg masses
    ingestion
    foraging
    possums
    young
    Ninox novaeseelandiae
    family
    conflict

    Cite this

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    title = "Common brushtail possum Trichosurus vulpecula evicts juvenile southern boobooninox novaeseelandiae from its nest-hollow",
    abstract = "We describe conflict between a breeding pair of Southern Boobooks Ninox novaeseelandiae and several Common Brushtail Possums Trichosurus vulpecula that culminated in a possum entering the Boobook's nest-hollow and eating most of a clutch of eggs. However, one egg hatched, although a possum subsequently caused the young Boobook to fledge prematurely. After the juvenile could fly well, the Boobook family vacated the hollow-rich nesting patch for a foraging area that lacked hollows, where the juvenile reached independence. In the following year, the Boobooks nested again in the same tree but lost two clutches (in different hollows) to possums, which then occupied one of the hollows, before finally fledging two young from a third hollow (in a different tree) ~2 months later than normal. This hollow had been used earlier in the season by Sulphur-crested Cockatoos Cacatua galerita, which harassed the incubating Boobook and tried to enter the hollow. Competition for increasingly scarce hollows, by some species which are already abundant or are becoming more so, may be a factor in the recent decline of Boobooks.",
    author = "Gerald Olsen and Susan Trost",
    year = "2009",
    language = "English",
    volume = "26",
    pages = "46--52",
    journal = "Australian Field Ornithology",
    issn = "0045-0316",
    publisher = "Bird Observers Club of Australia (BOCA)",

    }

    Common brushtail possum Trichosurus vulpecula evicts juvenile southern boobooninox novaeseelandiae from its nest-hollow. / Olsen, Gerald; Trost, Susan.

    In: Australian Field Ornithology, Vol. 26, 2009, p. 46-52.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Common brushtail possum Trichosurus vulpecula evicts juvenile southern boobooninox novaeseelandiae from its nest-hollow

    AU - Olsen, Gerald

    AU - Trost, Susan

    PY - 2009

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    N2 - We describe conflict between a breeding pair of Southern Boobooks Ninox novaeseelandiae and several Common Brushtail Possums Trichosurus vulpecula that culminated in a possum entering the Boobook's nest-hollow and eating most of a clutch of eggs. However, one egg hatched, although a possum subsequently caused the young Boobook to fledge prematurely. After the juvenile could fly well, the Boobook family vacated the hollow-rich nesting patch for a foraging area that lacked hollows, where the juvenile reached independence. In the following year, the Boobooks nested again in the same tree but lost two clutches (in different hollows) to possums, which then occupied one of the hollows, before finally fledging two young from a third hollow (in a different tree) ~2 months later than normal. This hollow had been used earlier in the season by Sulphur-crested Cockatoos Cacatua galerita, which harassed the incubating Boobook and tried to enter the hollow. Competition for increasingly scarce hollows, by some species which are already abundant or are becoming more so, may be a factor in the recent decline of Boobooks.

    AB - We describe conflict between a breeding pair of Southern Boobooks Ninox novaeseelandiae and several Common Brushtail Possums Trichosurus vulpecula that culminated in a possum entering the Boobook's nest-hollow and eating most of a clutch of eggs. However, one egg hatched, although a possum subsequently caused the young Boobook to fledge prematurely. After the juvenile could fly well, the Boobook family vacated the hollow-rich nesting patch for a foraging area that lacked hollows, where the juvenile reached independence. In the following year, the Boobooks nested again in the same tree but lost two clutches (in different hollows) to possums, which then occupied one of the hollows, before finally fledging two young from a third hollow (in a different tree) ~2 months later than normal. This hollow had been used earlier in the season by Sulphur-crested Cockatoos Cacatua galerita, which harassed the incubating Boobook and tried to enter the hollow. Competition for increasingly scarce hollows, by some species which are already abundant or are becoming more so, may be a factor in the recent decline of Boobooks.

    M3 - Article

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    JO - Australian Field Ornithology

    JF - Australian Field Ornithology

    SN - 0045-0316

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