What breed of duckling are these?

[Chickens and kittens]

Hi, I’m watching these two ducklings while their owners are out of town! Their names are Reggie and Jenny, I was curious to find out what breeds they are! I’m pretty sure Jenny is a mallard but, I’m not sure about Reggie. Does anyone happen to know? Reggie is the mostly yellow one.

 

[007Sean]

Jenny looks like Rouen, Reggie looks like a Runner...possibly a Muscovey?

 

[drumstick diva]

x2 007Sean

 

[Chickens and kittens]

Jenny looks like Rouen, Reggie looks like a Runner...possibly a Muscovey?

Thank you so much!