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The Movements of Icelandic Breeding Purple Sandpipers Calidris maritima Outside the Breeding Season

R.W. Summers, Auteur ; G.T. Hallgrimsson, Auteur ; B. Kalejta-Summers, Auteur ; G.Ö. Benediktsson, Auteur ; H. Gunnarsson, Auteur

Dans Ardea (112(2) October, 2024)

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Article

Aggressive behaviour of migrant and resident waders at the Berg River estuary, South Africa

B. Kalejta-Summers, Auteur

Dans Wader Study Group Bulletin (98 2002)

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Long-term trends, seasonal abundance and energy consumption of waterbirds at Rietvlei, Western Cape, South Africa, 1950-1997

B. Kalejta-Summers, Auteur ; D. G. Allan, Auteur ; T. D. Longrigg, Auteur

Dans Ostrich (72(1-2) MAR 2001)

Waterbird counts at Rietvlei, a freshwater wetland in the Western Cape, were analysed for four periods: 1950-56, 1961-67, 1980-85 and 1992-97. Ninety-eight species of waterbirds were recorded during these counts. Palaearctic migrants predominate[...]

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Long-term trends, seasonal abundance and energy consumption of waterbirds at Strandfontein, Western Cape, South Africa, 1953-1993

B. Kalejta-Summers, Auteur ; M. McCarthy, Auteur ; L. G. Underhill, Auteur

Dans Ostrich (72(1-2) MAR 2001)

Waterbird counts at Cope Frats Sewage Treatment Works (Strandfontein) near Cope Town are analysed for three periods: 1953-58, 1961-67 and 1983-93. Information on waterbird abundance is also provided for the period 1979-81. One hundred and one sp[...]

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