Picked up a couple ducks from the assorted ducklings at Tractor Supply back in April, and I initially thought that she was a Rouen like the other duckling we got. However, she's significantly smaller and darker than our Rouen. I know Hoover (who supplies Tractor Supply) sells Golden 300 hybrids, but all of the pictures of mature Golden 300s I've seen look much lighter. She's the darker one in the gif.