COUL PG OP DE (1934) Short announcements: Eurasian Bullfinch Phyrrhula phyrrhula coccinea regular breeding between Ermelo and Putten. LIMOSA 7 (1): 54-54.
Eurasian Bullfinch Pyrrhula pyrrhula Bullfinch Phyrrhula phyrrhula coccinea regular breeding between Ermelo and Putten
