I have been feeding birds for twenty years at my home and had a first
today.

 A very cold looking opossum spent about an hour under my feeder.  There
really weren't that many spilled seeds but enough to keep him there.

I did a little research and it looks like they are not that bad a nuisance
(compared to my squirrels!!) but do you know of any reason that I should
try to discourage a return visit?

Martha
Westford