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Banded rail (Gallirallus philippensis) occupancy and detection in saltmarsh mangrove systems at Onerahi, Whangarei Harbour

  • Publication Type

    Journal

  • Publication Year

    2015

  • Author(s)

    A.J. Beauchamp

  • Journal Name

    Notornis

  • Volume, Issue

    62, 1

  • Pagination

    14-20

  • Article Type

    Paper

Keywords

Banded rail


Banded rail (Gallirallus philippensis) occupancy and detection in saltmarsh mangrove systems at Onerahi, Whangarei Harbour

Notornis, 62 (1), 14-20

A.J. Beauchamp (2015)

Article Type: Paper

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Banded rails (Gallirallus philippensis) were surveyed in saltmarshes and mangrove fringed habitats at Onerahi, Whangarei, New Zealand. A total of 13 sites were surveyed 3 times per year around sunset during late spring in 2004, 2007 and 2013. On average 4.41 calls were heard per hour. Banded rails were detected at 12 sites with between 0.01 and over 2 ha of saltmarsh and extensive mangroves, but not a saltmarsh site lacking mangroves. Occupancy models favoured those with no change in occupancy state, seasonal detection, and there was with some support for random colonisation of sites. Records from Awaroa Creek indicate that rails can be detected from late afternoon calls throughout the year. Surveys should include the half hour before until at least 10 minutes after sunset.