For sure by 9 weeks that is a nice setup and putting up plastic will help alot to keep out the wind. They are very pretty Your lil Runners may have to huddle next to your while layers to stay warm be like snuggling under a down comforter.They are not fully feathered yet. They should be by 9 weeks old, right? The whitelayers are the calmest and friendliest of all the ducks. They are so sweet, hence the name sweet Emily's I suppose. lol I just can't tell them apart. The Ancona's are easy to tell apart and one of the runners has a darker patch on it's butt.
We are going to put plastic up over the whole pen to help block the wind. But here are some pictures of our setup.