Hi all:

This is another plea from the Colorado eBird reviewers.  If you are tempted to 
use an eBird entry that has a parenthetical expression, please do NOT use it 
unless you understand what that expression means.  As example, the Pueblo 
White-winged Crossbill has been reported to eBird under two (so far) different 
subspecies entries.  Since there is no definitive proof of occurrence in the 
New World of Old World subspecies of White-winged Crossbill, one might 
reasonably expect that the Pueblo bird is referable to the New World 
subspecies.  Unfortunately, much of the reason that there is no proof of 
non-New World subspecies occurring in the US and Canada is due to the fact that 
the species is little handled AND only an infinitesimal number of birders 
actually know how to differentiate the subspecies of White-winged Crossbill.  I 
certainly don't, and I've been a rabid student of subspecies ID since I got to 
Colorado.


Thus, the take-home message from this entreaty is that if you do not know how 
to differentiate a given subspecies, it's best if you don't report birds to 
eBird to that subspecies.  Additionally, even if you DO know how to do it, 
views often/usually do not permit definitive differentiation.


As with my previous missive here (on hotspot use), we Colorado eBird reviewers 
thank you for NOT using subspecies entries inappropriately.  By refraining from 
reporting stuff to subspecies willy-nilly, you save us some time.


Thanks,


Tony Leukering
currently Guymon, OK

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