PS: I warmed up some more water and warmed up some carrot peeling on the wood stove for treats. Gave the hens some more grain and lay for the second time today. I'll check for eggs later. Chickens are doing OK.
PSS: I went out just before dark and collected two eggs! Very, very cold eggs. And I took a photo of the chickens on the roosts and in the nest boxes. This was the best of the lot.