id	31582
datum	11 mei 2006
gemeente	Den Helder (NH)
locatie	Donkere Duinen
coördinaten	N 52.93539  O 4.7262
aantal, kleed	1, mannetje
soort waarneming	veldwaarneming
status	Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s)	J. van der Laan, N. Harder, C. Hopman et al
opmerkingen	11 May, Donkere Duinen, Den Helder, Noord-Holland, singing, photographed, sound-recorded (J van der Laan, N Harder, C Hopman et al). The bird was heard singing but not calling, making identification to species level tricky. The songs of Western Bonelli's Warbler P bonelli and Eastern Bonelli's Warbler P orientalis are very similar, whereas the most common calls are completely different. Specific identification on morphological characters is possible but requires very close views and/or detailed pictures to establish subtle differences in plumage and/or structure (cf Occhiato 2007) [Annual Report 2006]. Two sound-recordings of singing males bonelli's warbler P bonelli/orientalis from 2004 and 2006 were confirmed as Western Bonelli's Warbler based on the song differences with Eastern Bonelli's Warbler P orientalis described by Groenendijk & Luijendijk (2011) [Annual Report 2011].

Geluiden

Jan van der Laan · Bergfluiter

Beschik je over foto's of andere extra informatie of heb je opmerkingen over dit geval? Neem dan contact met ons op.

Contact