CrazyCrttr75
Free Ranging
I picked up what I thought to be 3 Rouen at TSC as well. I ended up with a Male Rouen, a Female Rouen and a Female Mallard. My female Mallard is 1/2 the size of the other 2. Other than size, the easiest way to tell the difference is that the Mallard will have a back toe removed on one of their feet, which is required by law for those that sell Domesticated Mallards. This is what is on most hatcheries websites to denote this:
"Important note: All Mallard Ducklings hatched domestically are required to be identified per US Fish and Wildlife regulations. Our ducklings will have a back toe removed upon hatch to identify them as domestically hatched."
"Important note: All Mallard Ducklings hatched domestically are required to be identified per US Fish and Wildlife regulations. Our ducklings will have a back toe removed upon hatch to identify them as domestically hatched."