Is this female call duck a regular or a blue butterscotch?

[Asiakg]

This gal was sold to me as a blue butterscotch. However, she has a lighter coloration than other blue butterscotches I’ve seen from other breeders. The other blues I’ve seen also have darker bills than she has.
I also have regular female butterscotches though and she’s definitely got more of a bluish tint to her than my regular butterscotches. my regular butterscotches have got the butterscotch cap with no hints of blue to them.
ive bred her to a regular butterscotch male and some of the ducklings have come out with the butterscotch markings, and some have come out with more bluish markings like she has. Thanks for your input!
The first photo is her as a juvie. Second photo is her as an adult. Third picture is one of my regular butterscotches for a color comparison.

https://imgur.com/LNssxDH

https://imgur.com/4uSawgI

https://imgur.com/G8awQp8

 

[CrazyChicken Lady]

I’m no expert on Call ducks, but I own other breeds. In my opinion that looks like more of a Blue Butterscotch. That or either it’s a impure bred Regular Butterscotch. The bluish tint is really strong.