{L_QUOTE}:
Originally Posted by GDK
There is a photo of a Dusky in BB 87, Plate 115 P438 (also 1994) showing a dark coronal band and bright edges to the wing.
Like most seemingly, I dont know much about Yellow Streaked, but can it show so little streaking in the central belly, breast, throat and chin? - the second photo shows this off very clearly. The only OB image face-on shows (to me at least!) subtle streaking despite the light flare:
Svensson (1992) seems to use this as a feature to separate Raddes (and presumably Dusky) from Yellow Streaked, stating there is no streaking on chin and throat in Raddes. Or is that just too crude for us in 2009?
Cheers
you would expect a bird in full breeding plumage (the OBI photo was taken in June) to show more yellow streaks than a midwinter bird, especially if the current bird is a first year bird.
The HKBWS article also suggests that YSW shows apricot undertail - which i a pretty good match on my screen (macbook).
I'm not insisting on YSW, but this little trio are not always straightforward, and I'm interested to learn how to sort out these intermediate birds
Thanks all for your assistance.
Below is a link of an identical bird taken by a birder in China in much brighter/harsher light.
The claim is that it is a Dusky but I think the same issues arise
another of a Dusky Warbler taken about 18 months ago 50 yards away from the location of my image .........
The differences occur in the bill & legs, but also the general facial markings.
Hope it is of help.
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