Posts Tagged ‘Magnus Hellström’

Ageing & Sexing of Migratory East Asian Passerines by Gabriel Norevik, Magnus Hellström, Dongping Liu, and Bo Petersson From Avium Förlag: This generously illustrated handbook covers 62 East Asian passerine species, including many that appear as sought-after vagrants in both Europe and North America. It provides a comprehensive and detailed summary of current knowledge, based […]