Investigation into diseases in free-ranging ring-necked pheasants (Phasianus colchicus) in northwestern Germany during population decline with special reference to infectious pathogens

N. Curland; F. Gethöffer; A. van Neer; L. Ziegler; U. Heffels-Redmann; M. Lierz; W. Baumgärtner; P. Wohlsein; I. Völker; S. Lapp; A. Bello; V. M. Pfankuche; S. Braune; M. Runge; A. Moss; S. Rautenschlein; A. Jung; L. Teske; C. Strube; J. Schulz; R. Bodewes; A. D. M. E. Osterhaus; U. Siebert