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Seasonal and long-term changes in bird numbers at Lake Wainono

  • Publication Type

    Journal

  • Publication Year

    1980

  • Author(s)

    Pierce, R.J.

  • Journal Name

    Notornis

  • Volume, Issue

    27, 1

  • Pagination

    21-44

  • Article Type

    Paper

Keywords

seasonal bird changes; Lake Wainono


Seasonal and long-term changes in bird numbers at Lake Wainono

Notornis, 27 (1), 21-44

Pierce, R.J. (1980)

Article Type: Paper

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Monthly bird counts were carried out at Lake Wainono, South Canterbury, from August 1968 to April 1978. Highest numbers of birds were at the lake from January to April because of a post-breeding increase in numbers of 18 common species. Six species reached peak numbers during the winter and only five during spring and early summer. Since 1968 White-faced Herons (Ardea novaehollandiae) have declined in numbers, whereas Paradise Shelducks (Tadorna variegata), Spur-winged Plovers (Vanellus miles novaehollandiae) and Black-backed Gulls (Larus dominicanus) have increased in numbers.