[Pply] two-barred crossbill Belgium
sander bruylants
sander.bruylants at hotmail.com
Wed Oct 23 16:21:07 EEST 2013
Hei,
Recently a two barred crossbill was observed in BelgiumWith only 15 accepted cases and 16 not accepted/still in process it's not a species to be dealt with easily.So, this last case is also a point of discussion. main discussion is about forms of common crossbill with wingbarsThat's why I'm interested in the opinion of Finnish birdwatchers on this case, since you have most likely seen more TB crossbill's than the average Belgian birdwatcher.There are some pictures, but not really good ones. I'll start with translation of field description of one of the birdwatchers (bird observed by three persons, short but good seen, all three really good birdwatchers) from distance off 40m two prominent wing bars were already clearly seen. After finding it in the telescope it became clear that the wingbars were pure white, no brown hints, contrast with black wing was sharp and clear. Tertials: really black with clearly marked white tops (not just a white edge)so wing was clear black contrasting to the red body.Lower wingbar was not really broad, but literature says that this can vary between 5-12mm on the tops of the greater coverts.No call heard.Now this is the link to the observation with the pictures: http://waarnemingen.be/waarneming/view/79819641in the discussion links to "white-winged" crossbills were givenhttp://www.birdforum.net/showthread.php?t=136858http://waarneming.nl/waarneming/view/79825341 Dutch obersvation, apparently calls were from curvirostra.http://www.britishbirds.co.uk/search?model=pdf&id=9525 somewhere down the article also a picture of L. curvirostra with wingbars
So I'm interested in your opinions!Since TB crossbill is not that a rarity and thus the chance of seeing a crossbill with wingbars is less likely than seeing two barred try to imagine that it would be the species that decided if your team or the other one won a major birdrace, maybe that will emphasize a more critical evaluation :)
thanks,
Sander
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