I have been searching for a chicken feeder that would provide my chooks with constant access, while keeping the feed dry, reducing spillage and not being to attractive to wild birds... And I found it!!
Here's the video http://m.youtube.com/watch?v=pJvqH7a78SA
All my chookies seemed to take to it easily and the feed is staying nice and dry, also thanks to some silicone where the pipes meet the bucket.
Special thanks to my clever dad for his patient assistance!