Yes, it does. Varying shades of blue. Like my hen who has varying shades of light blue to dark blue. Which can vary depending on genetics.
I read that you can get darker blue offspring by mating a Black BBS Ameraucana with a Blue BBS Ameraucana.
The head and neck in the original picture...
I ordered 2 Blue BBS Ameraucanas from Meyers back in 2022. 1 hen and 1 rooster, because I'd love to hatch out some in the future.
These are the best pictures i have of both of them together. They're older pictures. The hen is on the left, rooster on the right. She's not very photogenic. LOL...