I did their feeder watch 2 years ago, and that is probably how they got my name and address.It seems like a good idea to join them. The money goes to a good cause at a good university,and humans aren't the only ones who need help.
I really look forward to Project Feeder Watch starting soon. It's fun to look back to the summaries that are kept online of all of my previous counts and compare and anticipate various birds at various times of the winter. Instead of thinking "it seems like we had a lot more house finches years ago" I can check and see that we did!