Are Rouens All Marked the Same?

[wildpeas]

I have two 6 week female Rouens. They mostly look the same except one is bigger than the other and the bigger one has two white bands on her wings with black in the middle and just a hint of blue/green. She also still has a bunch of fluff on her neck. The smaller one has a narrow band of white on the bottom with black over it and definitely has the blue coming in. I bought them at the same time from the same place. Does this mean anything?

 

[sourland]

The larger duckling is simply growing and feathering out faster than the other one.

 

[Johnson5326]

Mine are growing at the same rate but I think they're both drakes. They're almost 6 weeks and their heads are both turning green.

 

[CorinneP]

I am still learning more about Ducks though I have four .. But I do have plans to possibly go get a couple Mallards tomoorw I am so excited !