The Pennsylvania Game Commission has put together an excellent information page on avian influenza and the threat posed by wild birds (click "Avian Influenza" under "Quick Clicks" on the right). Their intent is not to spread panic, but to inform hunters of the facts with a straightforward question-and-answer approach. Anyone who has contact with wild birds for any reason would do well to read the information at this site.
If you have bird feeders, you should count yourself in this group, and for those of us who don't hunt, the most relevant question on the page is probably "Should I be worried about my birdfeeder?" The answer provided is a sensible balance between calm and caution: basically just be sure to wash your hands after handling a bird feeder (and before handling food or any item that goes in your mouth). We all do this anyway, right?
To revisit earlier posts on this topic, see my articles and blog entries:
Avian Flu, North American Migratory Birds, and People
Avian Flu Spreads from Wild Birds but not H5N1
More on avian flu: