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Ferruginous ducks Aythya nyroca at the small lakes in the Seebach valley Nussbaumer-, Huttwiler- and Hasensee, canton of Thurgau Die Moorente Aythya nyroca an den Kleinseen im Seebachtal Nussbaumer-, Huettwiler- und Hasensee, Kanton Thurgau






Ornithologische Beobachter. September; 1043: 217-224

Ferruginous ducks Aythya nyroca at the small lakes in the Seebach valley Nussbaumer-, Huttwiler- and Hasensee, canton of Thurgau Die Moorente Aythya nyroca an den Kleinseen im Seebachtal Nussbaumer-, Huettwiler- und Hasensee, Kanton Thurgau

Since 2004, Ferruginous Ducks Aythya nyroca have been observed regularly on the three lakes in the Seebach valley. In winter 2004/05 a maximum of 7 individuals were observed, in 2005/06 18 individuals and 2005/06 11 individuals. Ferruginous Ducks were mostly present between September an March, in 2006 already from 16 July. Males dominated during the period of body moult (end of August to November) as well as in winter. Ferruginous Ducks were of-ten observed alone but sometimes formed groups of up to 9 individuals. They hardly associated with other species of ducks. Ferruginous Ducks were mostly observed in reedbeds or other vegetated parts of the shores offering cover, and dived close to the shore. In 2005 and 2006, numbers of Ferruginous Ducks on the three lakes accounted for about 20 % of the maximum numbers observed per decade in the whole of Switzerland, indicating the importance of the site for this species.


Accession: 038242573



Related references

Leuzinger, Hans, 2007: Die Moorente Aythya nyroca an den Kleinseen im Seebachtal (Nussbaumer-, Huettwiler- und Hasensee), Kanton Thurgau. Since 2004, Ferruginous Ducks Aythya nyroca have been observed regularly on the three lakes in the Seebach valley. In winter 2004/05 a maximum of 7 individuals were observed, in 2005/06 18 individuals and 2005/06 11 individuals. Ferruginous Ducks...

Habermeier, Alexander., 1997: Situation of the ferruginous duck Aythya nyroca in Germany and Europe - a globally threatened species Zur Situation der weltweit gefahrdeten Moorente Aythya nyroca in Deutschland und Europa. Berichte zum Vogelschutz, 35: 119-126

Randler, C., 2003: Behaviour of a hybrid red-crested pochard Netta rufina x ferruginous duck Aythya nyroca Verhalten eines Hybriden zwischen Kolbenente Netta rufina und Moorente Aythya nyroca. A male hybrid Red-crested Pochard x Ferruginous Duck (Fig. 4) was studied near Karlsruhe, SW Germany, on 4 days totalling 12 hours. Time budgets and feeding behaviour were compared to Red-crested Pochards, Tufted Ducks Aythya fuligula and Common P...

Sigg, Fritz., 2004: Record of a hybrid red-crested pochard Netta rufina x ferruginous duck Aythya nyroca on Lake Zurich Switzerland Hybride zwischen Kolbenente Netta rufina und Moorente Aythya nyroca auf dem Zuerichsee. On 18 November 2002, 18 and 22 March 2003 and 22 November 2003 a male hybrid Red-crested Pochard x Ferruginous Duck was observed in Zurich on Lake Zurich (Switzerland). It is the fourth documented record of this hybrid type in the wild and the fir...

Reusse, P.; Walter, M.; Lux, H.; Kneis, P., 2001: Breeding records of the ferruginous duck Aythya nyroca at two fishponds in the upper Roeder district, southern Brandenburg and northern Saxony, in the years 1999 and 2000 Bruten der Moorente Aythya nyroca in zwei Teichgebieten an der unteren Roeder in Suedbrandenburg und Nordsachsen in den Jahren 1999 und 2000. Acta Ornithoecologica, 42-4: 405-409

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