id	3657
datum	8 november 2009
gemeente	Velsen (NH)
locatie	IJmuiden
coördinaten	vervaagd
aantal, kleed	1
soort waarneming	veldwaarneming
status	Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s)	R. Slaterus
opmerkingen	8 November, IJmuiden, Velsen, Noord-Holland, photographed, sound-recorded (R Slaterus). This record fit well in the late autumn and winter occurrence of this taxon in north-western Europe. 'Classic' individuals, cold brownish birds lacking yellow and green tones in their plumage and with black bare parts, can be easily identified, especially when heard calling. The bird seen and frequently heard at De Bilt in 2007 was, on the other hand, a more difficult individual with more greyish plumage and paler bare-parts coloration. However, it called frequently and constantly as Siberian. It is argued that these types of birds are best regarded as Siberian (van den Berg & The Sound Approach 2009) and, hence, it was accepted as such, albeit after extensive debate. Annual Report 2009.

Geluiden

Roy Slaterus · Siberische Tjiftjaf

Peter Nuyten · Siberische Tjiftjaf

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