Thursday, September 27, 2018

New article on Swinhoe´s Rail in Bird Conservation International


Swinhoe´s Rail ringed at Muraviovka Park © Tom Wulf

After years of intense field work we are finally sure that the Vulnerable Swinhoe´s Rail Coturnicops exquisitus is breeding at Muraviovka Park! First, we had to discover its actual vocalisation (see publication in BirdingAsia), as the descriptions in the literature were mainly wrong. Eventually, Tom Wulf found an egg shell, which we now linked to genetic samples of trapped individuals – the first documented proof for breeding of this species for 110 years! With the new recordings by Alex Thomas and Tom Wulf available on xeno-canto, researchers in other parts of East Asia successfully searched for the species in Japan, Korea and China (see example here). A great success, and a good sign for the future of this poorly known bird.

Nach jahrelanger intensiver Feldarbeit konnten wir nun endlich belegen, dass das gefährdete Mandschurensumpfhuhn zu den Brutvögeln des Muraviovka Parks gehört! Zunächst mussten wir den Gesängen und Rufen der Art auf die Spur kommen (siehe unsere Publikation in BirdingAsia), denn in der gängigen Literatur waren diese meist falsch beschrieben. Irgendwann fand Tom Wulf tatsächlich eine Eierschale, die mit den DNA-Proben der gefangenen Individuen übereinstimmte – der erste sichere Brutnachweis dieser Art seit 110 Jahren! Seit die neuen Tonaufnahmen von Alex Thomas und Tom Wulf auf xeno-canto verfügbar waren, konnten Ornithologen auch in anderen Teilen Ostasiens erfolgreich nach dem Mandschurensumpfhuhn suchen, so zum Beispiel in Japan, Korea und China (zum Beispiel hier). Ein toller Erfolg, und ein gutes Zeichen für die Zukunft dieses kaum erforschten Vogels!

//Wieland

Full citation: Heim W, Trense D, Heim A, Kamp J, Smirenski SM, Wink M, Wulf T (in press) Discovery of a new breeding population of the Vulnerable Swinhoe’s Rail Coturnicops exquisitus confirmed by genetic analysis. Bird Conservation International https://doi.org/10.1017/S0959270918000138 

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