I'm thinking about playing around with genetics of this color sometime. I can post back with my experiences.Uknown... Likely dominant but since it's a color mostly found on Game birds it will likely remain an Unknown until someone with space and time gets the chance to study and publish a study on it.
So, would breeding pumpkin to pure Wheaten give pumpkin males? Just trying to get an understanding.
Here's the Pumpkin left, & Buff right.