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Weggler, M.

Verlauf von Kiebitzbruten Vanellus vanellus auf Flachdächern und Versuch der Jungenumsiedlung.

2009

106

297–310

Key words
(von 1994 bis 2006 vergeben)

Lebensraum, Flachdach, Feuchtgebiet, Bodenbrüter, Neststandort, Bestandesentwicklung, Bestandesaufnahme, Legebeginn, Brutversuch, Schlüpferfolg, Nesterfolg, Bruterfolg, tägliche Verlustrate, Gelegeverlust, Umsiedlungsversuch, Verhalten, Nahrungsangebot, Artenschutz

Schlagwort_Vogelart
(wissenschaftlich)

Vanellus vanellus, Corvus corone

Schlagwort_Vogelart
(deutsch)

Kiebitz, Rabenkrähe

Schweiz, Zürich, Flughafen Zürich-Kloten

deutsch

Abhandlung

Fate of Northern Lapwing Vanellus vanellus broods on flat roofs and options for translocation of chicks. – Since 1992, Northern Lapwings have nested on flat roofs of large commercial buildings in Switzerland. In all situations these buildings are located close to traditional breeding sites in farmland or wetlands. Mayfield daily nest survival rates of rooftop nests are equivalent with nests on the ground, based on 23 nests followed in 2007 and 2008 in the canton of Zurich. However, Mayfield daily survival of families (at least one chick alive) is so low that less than 1 out of 1000 families will fledge any young on rooftops. Because most chicks died before attaining thermoregulatory independence from brooding, translocation experiments were limited to one case. This experiment had to be abandoned prematurely because chicks reacted with strong whining calls attracting Carrion Crows Corvus corone as potential predators. Based on these preliminary results, rooftops offer suitable nest sites for Lapwings but are unsuitable for rearing chicks. Chick translocation seems possible when suitable chick-rearing areas are adjacent to the buildings and/or potential adoptive parents with chicks of similar age are present. However, the author suggests that preventing Lapwings from breeding on rooftops seems to be a more promising conservation strategy than trying to move chicks from the roofs.