You know. . I have calls and I have standard size ducks.Are call ducks more at risk because of smaller size compared to full sized ducks?
I really don't notice much difference in their behavior in regards to being cold. .
I'm in Missouri but we still have some freezing and below freezing weather here. . and all my crazy birds still want to come outside pretty much no matter what.. I would say the calls do just as good in the cold as my standard. They have full access to their house at all times and I lock them up every night. Winter is more of a struggle keeping the water out more than anything.