That's the problem - it has been snowing a lot of the time, and the drinker freezes in the house overnight. The house is 2 feet off the ground Marigold and I've not seen any sign of rats - and believe me, I check carefully. I was told by a hedge layer that if you keep your mouse habitat, which we have, then you don't have rats plus . we have between 4 and 6 cats around.
Anyway the sun was shining (and still is) so the food was put outside as normal and I even managed to scrape the droppings shelf clean. The area under the house is clear of snow and also a patch on the south side but that is very muddy. The little Legbars are fine as their run is clear of snow as is an area in front of the door - I had to clear it in order to open the door, and they have ventured out once or twice.
it's going to take a long time to shift this lot though which makes building a sheltered run for them a bit difficult - half the materials are buried by snow and there's no point in building it over a foot of snow!