Snow fall and baffled hens

We had a modest amount of snow overnight, about 2cm. When I let the hens out each morning, they normally charge out of the henhouses and head towards the top of the chicken run where I feed them. Today however, they stepped out and looked around in a state of confusion. Some of them stayed in the henhouse for a few minutes before bucking up the courage to walk out into the alien landscape. Others wandered around looking at things suspiciously. Once they realised the snow was not a threat to them, they shrugged it off, ate their wheat and pellets and headed off for a day in the snow. Meanwhile, the ducks were loving it.