I just rerad a article in Ducks Unlimited Website about the virus. It has been found in many different birds including mallards, wood ducks, sandhill cranes, I can't remember the rest. DU thinks that for some reason the wild birds are immune as the only birds found to be infected come from zoos. http://www.ducksunlimited.org/news/west_nile_virus_september_2002.asp#
Here is a very handy and effective device I use to dispense corn with - but it could also be used to dispense any other seed or deer feed.
I had an old feeder that had a failed motor... I made a set of brackets to attach the feeder to the rear of the 4 wheeler - the lower one encircles the feeder and has a forward section with holes drilled in the outer ends of the bracket... these holes align with two 5/16" bolts that drilled into the rack of the 4 wheeler.
The upper bracket is an "L" shaped...