Which Patka breeds come in S bijelom glavom?

Club breed standards describe S bijelom glavom for the Mošusna (pižmovka).

Patka pattern

S bijelom glavom

Muscovy duck pattern: a colored bird with a white head and upper neck (German 'weißkopf' in blue, brown, pearl gray and silver).

5 Patka breeds list S bijelom glavom. It is in a club standard for 5 breeds.

Breed	EE
Mošusna (pižmovka)	Prema standardu (“blau-weißkopf; braun-weißkopf; perlgrau-weißkopf; silbergrau-weißkopf”)
Mošusna (pižmovka)Plavi bjeloglavi	Prema standardu (“blau-weißkopf”)
Mošusna (pižmovka)Čokoladni bjeloglavi	Prema standardu (“braun-weißkopf”)
Mošusna (pižmovka)Lavandasti bjeloglavi	Prema standardu (“perlgrau-weißkopf”)
Mošusna (pižmovka)Srebrni bjeloglavi	Prema standardu (“silbergrau-weißkopf”)