Some years ago a writer to Birding-Aus postulated that all
Waders are actually the one species !
 
.. but there are many races ! !
 
(can anyone find that posting in the archives ?)
 
Seriously, ID of a Waders is a challenge. 
 
I have started a simple ID comparison table for a range
of Waders seen in Qld.
 
It is size sequence for a start !
 
Please contact me for a copy. I am seeking feedback from the
experts out in civilisation.
 
It is in Microsoft Word format.
 
Regards
Bob Forsyth, Mount
 Isa, NW Qld.