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Article
Hein van Grouw, Auteur ; Dirk Tolkmitt, Auteur ; Detlef Becker, Auteur ; Frank Weihe, AuteurScattered records of birds with an unusual brown colour to parts of their plumage have been known for some time but, so far, the nature of this aberration has not been investigated. Aberrant reddish-brown phaeomelanin has been recorded in many s[...]
Article
Michael Wink, Auteur ; Detlef Becker, Auteur ; Dirk Tolkmitt, Auteur ; Verena Knigge, Auteur ; Hedi Sauer-Guerth, Auteur ; Heidi Staudter, AuteurThis paper provides for the first time an insight into the breeding system of the Eurasian Wryneck (Jynx torquilla). DNA fingerprinting and molecular sexing were used to investigate paternity, mating system and sex allocation in a population nea[...]
Article
Rien E. van Wijk, Auteur ; Michael Schaub, Auteur ; Dirk Tolkmitt, Auteur ; Detlef Becker, Auteur ; Steffen Hahn, AuteurEuropean Wrynecks Jynx torquilla torquilla have generally been considered to be long-distance Palaearctic-African migrants that spend the non-breeding season in Sahelian Africa, where they have been reported regularly. Results from tracking indi[...]
