HELLEBREKERS WPJ (1970) Oölogische nidologische and announcements in 1970 (and earlier): Young Willow Tit Poecile montanus brought up by a Eurasian Nuthatch Sitta europaea. LIMOSA 43 (3): 155-155.

Willow Tit Poecile montanus Eurasian Nuthatch Sitta europaea Young Willow Tit Poecile montanus brought up by a Eurasian Nuthatch Sitta europaea

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