Raptor,

My in-laws (east of Pittsburgh) tell me that the Red Squirrels will run off the Gray Squirrels at their feeder, so they may indeed be more troublesome. But here in the Maryland suburbs of Washington DC, Red Squirrels don't occur.

I have heard a report that the American Gray Squirrel (Sciurus carolinensis (sp?)) has been introduced into Britain, and is driving out the native Red Squirrels there. What idiot brought American Gray Squirrels to Britain?