4

Witkeelkwikstaart

id	67652
datum	21 april t/m 9 juli 2018: 80 dagen
gemeente	Groningen (GR)
locatie	Onnerpolder
coördinaten	N 53.16509 O 6.6649
aantal, kleed	1, mannetje
soort waarneming	veldwaarneming
status	Aanvaard, gepubliceerd in jaarverslag CDNA
waarnemer(s)	L. Brinkhuizen, T. Mulder et al
opmerkingen	21 April to 9 July, male, photographed, sound-recorded, videoed (L Brinkhuizen, T Mulder et al; Dutch Birding 40: 205, plate 277, 278, plate 370, 2018, 41: 19, plate 20, 2019). Totals include two birds accepted as Ashy-headed Wagtail M c cinereocapilla. Since individuals of more common taxa with white throats also occur, and raspy song elements are sometimes mistaken for calls, recordings of the call remain required to get a record accepted. The territorial bird from 2018 remained in the area for nearly three months, allowing plenty of opportunities to record the diagnostic call. It mostly resembled Ashy-headed but the hint of a whitish eyebrow behind the eye made it impossible to separate it from an intergrade with Spanish Wagtail M c iberiae. The 2017 bird mainly resembled Spanish on plumage but sonagrams of the calls seemed to fit Ashy-headed a bit better. It was therefore not accepted on subspecific level. Out of the now six records, no (certain) Spanish has been recorded. Annual Report 2018.