Sorry about my error in terminology: not inner secondaries but of course
But for me they appear ribbed as in corrugated or waved, not just as a
color pattern. And I'm quite sure that was what Jack was also referring to.
Is it so or is it just an illusion?
pe 7. syyskuuta 2018 klo 2.17 Philip Veerman <>
> I wonder what aspect you are referring to as "ribbed" I see them as barred.
> Barred feathers are entirely normal in a whole range of birds, many
> waders, black-cockatoos, cuckoos, etc. Maybe Jack was referring to the
> and Harry referring to the pattern, or both. I am not sure.
> -----Original Message-----
> From: Birding-Aus On Behalf
> Harry Nyström
> Sent: Thursday, 6 September, 2018 6:47 PM
> To: Birding-Aus
> Subject: Re: [Birding-Aus] Two "ladders
> Those are the innermost secondaries.
> But maybe someone else could know or have an educated guess on why they are
> to 6. syysk. 2018 klo 11.17 kirjoitti:
> > Hi
> > Just looking at an image of an Australasian Darter (male, breeding I
> > photographed a couple of weeks ago in the Botanical Gardens in Cairns.
> > Photographed from behind with wings drying. Can any ornithologist tell me
> > what the two "ladder-like" feathers are next to its body? I cannot find
> > answer anywhere.
> > Thanks in advance
> > David in Blackheath
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