Stopped by Centennial this afternoon looking for June's Cackling Geese 
and found 4.  There are many Canada Geese present, including what appear 
to be Lessers (parvipes).  It's really interesting to see the variation 
in the regular Canadas (size, bill shape, breast color, neck length, 
chinstrap extent) - wish I had my scope with me so I could have taken 
some pics.

Cheers,
Steve Collins
Towson, MD