Welcome to BYC
I forgot you have to have so many posts to put a picture on your comments. I'll see if I can find out how many posts so you can post a pic of them . Welcome to byc it's a great group of people with lots of knowledge. Did you click on that website that Miss Lydia sent in her message. It has lots of information for a new duck owner. From what you described it sounds like your doing a really good job. Thanks so much for rescueing the little ones.
So now I have a question. My ducks are currently all huddled under the heat lamp. Some are sleeping, (The yellow guys). and some (the khaki guys I think) are breathing heavy with their beaks opening and closing and they're legs stretched out. They have a cooler space in their little house area to get away from the lamp if they get hot. Is this normal?
Do you know the temp in your brooder? put the lamp at one end and make sure it isn't too hot in there always a good idea to have a thermometer in the brooder I'll get you the caring for ducklings link Breathing with their mouths open can mean they are too warm.I just saw I already gave you the link so it will give you the best temps for your brooder at the age they are.
Edited by Miss Lydia - 4/2/16 at 3:10pm
Are they afraid to go in the little house? I would put the lamp at one end and see if they move to the opposite end. You might want to take the house out and see if they move away from the light. Like Miss Lydia said it would be a good idea to get a thermometer so you can check the temps.