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RE: Yet more on pterosaur quad arm posture

OK, my incredule, here is a flightless Weka (Gallirallus australis) in a


And, as I say, chicks and pinioned birds that can't fly do it too. Of course 
Strigops does as well, but it is zygodactylous, after all.

Jason Brougham
Senior Principal Preparator
American Museum of Natural History
(212) 496 3544

On 7/11/13 5:59 PM, "David Marjanovic" <david.marjanovic@gmx.at> wrote:

>> > > they climb up there
>> >
>> > I bet this refers to WAIR. A seriema walking up a tree trunk like a
>>nuthatch is really hard to imagine.
>> But as I was saying, this referred to the mammalogist's definition. So
>>climbing (with claws or with prehensile feet or what have you) is the
>>way to get up in the trees.
>> So again: to mammalogists, arboreal vs. scansorial is more about WHERE
>>the animal lives & feeds vs. rests, whereas to ornithologists it is
>>about how they get there.
>...Not what I'm saying. I'm not talking about whether seriemas should be
>classified as arboreal, scansorial or anything; I'm expressing
>incredulity at the explicit claim that they climb up low trees instead of
>flying there.