[wisb] Slaty-backed Gull question - were they distinctly different birds?

  • From: Schaufenbuel <schaufenbuel@xxxxxxxxxxx>
  • To: "wisbirdn@xxxxxxxxxxxxx" <wisbirdn@xxxxxxxxxxxxx>
  • Date: Sat, 02 Apr 2016 14:07:47 -0500



Two adult Slaty-backed gulls concurrently appeared in SE WI this winter 
not to distant from each other (Jefferson and Milwaukee Counties). Throw 
in vagaries among cameras, settings lighting and angles,  images seem 
not to settle for me that they were in fact two different birds. So were 
they dissimilar enough to ask if those seeing both were left believing 
they were different individuals for certain?

Thanks,

Joe

-- Joe Schaufenbuel Stevens Point Portage Co., WI
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