My ducklings turned 2 weeks old this past Monday and I was hoping to put them outside at least during the day this weekend. This weekend is supossed to be 83 degrees. They have used a mama heating pad since they were 2 days old. If I move them outside with it being over 80 degrees should I put the heating pad outside in their duck house? I have noticed them sitting on top of the heating pad lately more than they ever have before. Thanks!