This afternoon I decided to check the polders of the Biesbosch, a sort of a local patch for years. After the regular sightings of Tundra Beans, Hen Harriers and White Egrets, I got a walk to the observation shack of polder Maltha.
About hundred meters before the shack, I noticed a strange call, resembling the first part of the call of a Siskin. But after a quick walk on the dike, it seemed clear to me: a continuously calling Siberian Chiffchaff, say tristis! The bird was foraging in some small shrubs, while calling the typical 'whiee', whithout any variation. Observing the plumage, it turned out to be a classical greyish bird, with black legs, buff-brownish cheeks et cetera. Here some pics.
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| tristis - Brabantse Biesbosch, polder Maltha, 24/11/2011 |
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| tristis - Brabantse Biesbosch, polder Maltha, 24/11/2011 Note the paler cutting edge of the bill. |
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| tristis - Brabantse Biesbosch, polder Maltha, 24/11/2011 |
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| tristis - Brabantse Biesbosch, polder Maltha, 24/11/2011 |
Almost exactly one year ago, my friend Peter Verhelst and I found a tristis near Maastricht. That bird had the same plumage and call and also disappeared after some minutes. Either leaving us without a voicerecording. It is still circulating in the second round of the CDNA. I think the commission won't accept sightings whithout a good voicerecording because some Dutch papers about the variability of tristis stress the importance of their voice.
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| tristis - Maastrich, Pieterplas, 23/11/2010 (Peter Verhelst) |
Albert
BeantwoordenVerwijderenBedankt voor jouw reactie op birdingoldambt en jouw blog mag er ook wezen hoor met al die schokkende plaatjes waar de gemiddelde Groninger vogelaar met een beetje gemengde gevoelens naar kijkt , ja wij hebben dit jaar behoorlijk naast de pot gepist qua klappers in de TOH . Ik ga jou blog zeker vaker bezoeken .
Groet André Boven