I have a quick question. My two ducklings are about a week old. I want to take them out in the backyard to run around a bit, but I don't know if it's too cold for them. It's currently 41 outside and sunny. I was hoping to take them out a few times before it started snowing. Is it possible for them to run outside? Even if it's just for a bit? Thanks for the help. I'm still quite new to this.