Fachbereich Veterinärmedizin



    Pinching off syndrome in free-ranging white-tailed sea eagles (Haliaeetus albicilla) in Europe:
    frequency and geographic distribution of a generalized feather abnormality (2007)

    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Müller, Kerstin
    Altenkamp, Rainer
    Brunnberg, Leo
    Fasungová, Lucia
    Freymann, Hubert
    Frölich, Kai
    Kollmann, Rainer
    Krone, Oliver
    Literák, Ivan
    Mizera, Tadeusz
    Sömmer, Paul
    Schettler, Elvira
    Journal of Avian Medicine and Surgery; 21(2) — S. 103–109
    ISSN: 1082-6742
    Pubmed: 18065131
    Klinik für kleine Haustiere

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    Haus 1
    14163 Berlin
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    Abstract / Zusammenfassung

    Generalized feather abnormalities are rarely documented in free-living birds. Pinching off syndrome (POS) is a feather abnormality in which all remiges and retrices become malformed and are lost during the nestling stage, rendering the bird unable to fly. To determine the frequency of occurrence and geographic distribution of this syndrome in white-tailed sea eagles (Haliaeetus albicilla) in Europe, we sent questionnaires to ornithologists in 19 countries within the European range of this species. We also searched for reported cases of sea eagles with feather abnormalities that met the criteria of POS. Overall, 32 nestlings or fledglings with POS were identified between 1975 and 2006. The geographic distribution of cases was primarily restricted to 4 European countries: Germany (17 cases), Poland (11 cases), the Czech Republic (3 cases), and Great Britain (1 case). Eleven eagles from Germany and 2 eagles from the Czech Republic were examined clinically. In 15 birds in which sex was determined, 8 were female and 7 were male. From 2000 to 2005, the 5-year incidence of POS in white-tailed sea eagles in Germany was 3.5 cases per 1000 birds. Although the etiology of this syndrome in wild sea eagles is unknown, our results support a possible genetic cause.