3 treff

Measuring birds
edited by Deutsche Ornithologen-Gesellsch...
Bok Engelsk 2011
Towards an ornithology of the Himalayas : systematics, ecology and vocalizations of Nepal birds
by Jochen Martens & Siegfried Eck
Bok Engelsk 1995
Eulen : die rezenten und fossilen Formen Aves, Strigidae
von Siegfried Eck und Horst Busse
Bok Tysk 1973