This was copied from pine hill Silkie page, it is an excellent resource.
“Breeding Responsively:
There seems to be a lot of talk about what colors to breed together... or not... As a person who breeds to 'show', I tend to be a bit of a purest... But here's some tips on what happens when certain varieties (colors) are crossed and what that means later on down the line...
What NOT to cross:
Paint to Buff - Will most likely add black (smut) or Partridge traits to Buff chicks and red (DQ) into paints and/or black birds!
Buff to Black - Buff silkies should be a lovely even shade of orange / gold. [Think Buff Orpington]. It's very hard to breed black (smut) out of buffs, as it keeps popping up for multiple generations, ruining a buff line.
Buff to Blue- or Blue to Blue Cream. Blue Cream is a delicate balance of Lavender (Self Blue) and Buff. Self Blue is NOT blue.. So folks that are trying to get Blue Cream out of blue genetics (instead of Self Blue) are going to end up with Wheaton based Blue Partridge looking birds.
Buff to Partridge - Wheaton Partridge is okay, but not the SOP and more importantly, Partridge will add black into the buffs.
Paints to Blue - Will add diluters into the black spots of the Paints making Paints "look" like blue splash silkies. And again, most likely, will add the red gene into blue birds.
Any 'red gene' (Partridge, Red Pyle, Red, Red Buff etc).. into Greys, Blues or Pure Black or Paint - No, they are not "Calico's". It's introducing a DQ (red) into a solid line. This red may show back up many many generations down the line... It's a nightmare for SOP breeders.
Here's are some accepted crosses:
Paint to Silver based solid (recessive) White or Black
Black to Blue or Splash
Buff to Buff - breeding lighter to darker birds
Grey to Grey - breeding lighter to darker birds
These are just simple suggestions... I'm not here to police everyone's breeding program!
And even though you may fancy yourself as an amature backyard breeder.. no one keeps all of their chicks, year after year. So if you love the breed... it would help everyone on down the line, if folks were a bit more careful about what they are sending out into the "market" as a pure Silkie... Those hidden genetics will pop back up, and if a future buyer decides to get serious about a breeding program.. it could make a huge difference in how well they do...
Just something to think about...”