They are much rarer than the standard GC. They are very rare, I have never found a photo of them online, nor found anyone who has any, except for Holderread.
They're called Miniature Golden Cascades. They were developed by Dave Holderread, who is also who I obtained them. They are a tiny bit larger than a Call, but the females can lay up to 200 eggs annually, more than any bantam duck out there.
If any of you raise Miniature Golden Cascade ducks, and have any tips on keeping them, I would love to get as much info about genetics and sizes/measurements.