From which vantage point were you viewing the Hinsdale roost?   I've been to 
one spot where you park at the end of River  Road at signs for a Shooting 
Range then hiking to the top of a ridge to  look down on the waterfowl.  Then I've 
heard of a spot accessible from  a boat  access area at the north end of 
Prospect Street where you can walk on the dam  access road all the way out to the 
dam.  From here you can look 
north  or south of the dam.  Given that there is ice in your photo I'm 
guessing it  is this latter location.  Or maybe there's another spot?  
Many  thanks -
Mike  Resch
Pepperell,  MA

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