As well as being in pairs they're also seen in family groups.  A couple of years back 4 Cackling Geese frequented several spots in Montgomery County, always together.  One - presumably Dad - was a bit bigger and larger-billed than the others.  I believe its often the case that geese winter together as a family unit.

  Regards
   
  Clive Harris
  Cabin John, MD
  
Jim Stasz <> wrote:
  Hi Folks!

The answer is.....We are paying better attention. For years before the split a few birders took the extra time to note "Canada Goose - small races". In any reasonably large group of migrant Canadas you will find a pair of Cackling Geese. 
Jim Stasz
North Beach MD



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Sent: Fri, 15 Dec 2006 7:46 AM
Subject: [MDOSPREY] Cackling Geese in MD