Which יונה breeds come in עקעק?

Club breed standards describe עקעק for the מודנה.

יונה pattern

עקעק

Dark and white in a set arrangement: the Magpie duck's colored cap and back, magpie rabbits and cavies.

2 יונה breeds list עקעק. It is in a club standard for 2 breeds.

Breed	NPA	BDRG
מודנה	תקני (“The color descriptions apply to both Schietti and Gazzi, with the exception of the white on the Gazzi body.”)	תקני (“Gazzi Blau mit bronze Binden; Gazzi Blau-bronzegehämmert; Gazzi Dunkel-bronzeschildig-gehämmert”)
מודנהגאצי	תקני (“The color descriptions apply to both Schietti and Gazzi, with the exception of the white on the Gazzi body.”)	No ruling