Frontgarden

It was time to get the geese out of their winter accomodation since snow started to disappear and they started laying. We made a simple shelter in our frontgarden under which they can lay their eggs and hatch their chicks.
The perfect geese night-house keeps occupying our minds. First of all it should be fox-proof and when they are young it should protect them against rain and cold. The biggest problem is the floor; how to keep it clean? Geese produce a lot and rather liquid manure. So when you put straw on it, it should be renewed every day, when you keep them on concrete you have to clean it with water, only slatted floors don't demand daily cleaning but are not very gese-feet-friendly. Something movable without a floor would be ideal however will this be fox-proof?