Phylloscopus trochilus
Phylloscopus trochilus The willow warbler (Phylloscopus trochilus Linnaeus, 1758) is a passerine bird belonging to the Phylloscopidae family. Systematics –
Read morePhylloscopus trochilus The willow warbler (Phylloscopus trochilus Linnaeus, 1758) is a passerine bird belonging to the Phylloscopidae family. Systematics –
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