This afternoon walked the river trail up from Great Falls on the Maryland side. 
Of particular interest were ring necked ducks in quantity, and male and female 
common mergansers. Niether, of course, unusual there at this time of year but 
I did make what I think was an unusual mammal sighting. A very large squirrel 
with a red tail crossed the path in front of me. I think it could have only been 
an eastern fox squirrel (not the Delmarva subspecies). Has anyone seen these 
animals in Montgomery county or other parts of Maryland or is knowledgeable 
in this regard ? This is not the first time that I saw what may have been an 
eastern fox squirrel a number of years back -a brown squirrel with a distinctly 
yellow belly-in my own back yard in Bannockbern, I note not far from a creek 
that flows into the nearby river.

Phil Brody