7
Giervalk
Falco rusticolus · Gyrfalcon
| id | 4223 | |
|---|---|---|
| datum | 13 november 2004 | |
| gemeente | Noardeast-Fryslân (FR) | |
| locatie | Holwerd | |
| coördinaten | N 53.38537 O 5.8831 | |
| aantal, kleed | 1, juveniel | |
| soort waarneming | veldwaarneming | |
| status | Aanvaard, gepubliceerd in jaarverslag CDNA | |
| waarnemer(s) | D.M. Brinkhuizen, E. de Weerd, P.W. van Wetter et al | |
| opmerkingen | 13 November, Holwerd, Dongeradeel, Friesland, photographed (D M Brinkhuizen, E de Weerd, P W van Wetter; Brinkhuizen et al 2004a; Dutch Birding 26: 433, plate 611, 2004), and 19-20 December, Tibma, Dongeradeel, Friesland, juvenile, dark morph, photographed (A Hidding, E Douwma, O Tol; Douwma & Tol 2005; Dutch Birding 27: 83, plate 100, 2004). This bird was very elusive and could not be twitched. It is still under investigation whether one bird or two were involved; for the time being, it is regarded here as one. Previous records were in October 1849, December 1864, December 1900, December 1909, January-April 1987 and March 1998. The 1909 and 1998 birds were white morphs, all others were dark morphs. Annual Report 2004 and 2005. | |
| gekoppelde gevallen | 4223 |
13 november 2004 Noardeast-Fryslân (FR) Holwerd |
| 4224 |
19 t/m 20 december 2004 Noardeast-Fryslân (FR) Tibma |
|
DB 26:433 Giervalk bij Holwerd
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