Corvus corax principalis Perisoreus canadensis canadensis Agassiz Fuertes
Summary
Deutsch: Kolkrabe (Corvus corax principalis) und Meisenhäher (Perisoreus canadensis canadensis)
English: Northern Raven (Corvus corax principalis) and Grey Jay (Perisoreus canadensis canadensis)
Date
1936
Source
Wikimedia Commons
Copyright info
public domain