Our Mallards had a little stripe under there too...Im gonna say rouen. Mallards dont usually have much of anything under the first stripe.
Rouen ducklings often have a break in the second stripe. The ones i have seen sometimes have a full stripe and sometimes look like yours. They look pretty good sized already as well which makes me think rouen.
If they are mallards- the hatchery clips on of their back toes i believe so they can be regulated . ( unless that has changed)![]()
I don't think it changed...
Now that I look at the picture better I think the middle two are Rouens and the outside ones are Mallards.....
