My Cauyagas are 21 weeks old. Last night in Riverton Utah it got down to 43 degrees. My duck babies have a coop to sleep in but at 11pm, 215am and 4am they were sleeping in the pond. I guess I just need to stay in bed and not worry about them But I want to (no not really) cover them with a blanket. Brrr I was freezing. When it is cold enough we plan to not have water IN the pond. They seem fine just someone tell me they are ok or crazy?