That sounds pretty cool, doubt it would exist here, we have poor selection at the best of the times, to even find this is odd lolI saw one that had a funnel type interior with arched top holes in the wall of the bucket to allow the ducks to get their heads inside to grab food.
The base looks wider than the bucket which would allow rain/snow to build up and make a mess of the feed. You can build a flat roofed station to hang it under (or another feeder) to help protect the food.
That is true but it's better than the open pans which make up the majority of my feeder styles, need to see it in person... Feeders in bad weather are such a pest to come up with, i'd keep it all in the barn but they will argue and keep some of the little ones out so scratch that...When I have watched my ducks eat they seem to scoop the food up a bit. If the base was wide enough to scoop it would probably work but unless it's under a shelter it's not going to keep the food dry.