Title
Willow Warbler Phylloscopus trochilus imitating the song of the Chiffchaff P. collybita
By
Haftorn, Svein, 1925-2003
Original Publication
Bulletin of the British Ornithologists' Club
Published by
London, British Ornithologists' Club, 1893-
Identifiers
BioStor:
https://biostor.org/reference/112175
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