Predictions for chick colors and a few other traits:
From hens with single combs, all chicks should have single combs.
From hens with non-single combs, chicks may inherit their mother's comb type or may have single combs. (The Dominique should have a rose comb, and I don't know what comb type the Easter Egger has. All the rest should have single combs.)
If any parent has feathered feet, their chicks may show that too. (Marans rooster or hen are the most likely to have that.) Two chickens with clean legs (no feathers on the feet or shanks) should mostly produce clean-legged chicks, although chicks with a few feathers do sometimes come from clean-legged parents.
For egg color, with those roosters: any pullet who hatches from a brown egg, should grow up to lay brown eggs. Pullets who hatch from blue or green eggs may grow up to lay green eggs, or they may grow up to lay brown eggs (it depends on what genes the mother has that she can give them.) Pullets with a Marans father will probably lay darker eggs (dark brown, dark green = olive), while pullets with a Lavender Orpington father will probably lay lighter eggs (light to medium brown, light to medium green). Of course cockerels don't lay eggs, but they will have the same egg-color genes as their sisters do.
2 Barred Plymouth Rock hens, both laying, Sarah, 39 weeks old, and Hocus Pocus around 147 weeks
1 Dominque pullet, laying, Winifred, 39 weeks
For both of these hen types, with either rooster, sons will be black with white barring, daughters will be black with no white barring. At hatch, all chicks will look like little penguins (black with white or yellow on the underside), but the males will also have a yellow or white spot on the top of their head.
As they grow up, the chicks with a Marans father may show some leakage of other colors (like red in hen's breasts or rooster's shoulders). Chicks with the Lavender Orpington father will probably not show leakage like this.
Chicks with the Dominique mother may have rose combs, but she may also be able to produce chicks with single combs.
1 Easter Egger pullet, laying, Jelly Bean, 35 weeks old
I don't know what color and other traits the Easter Egger has, so I can't easily predict what the chicks will have.
Comb type, crest on the head, muff/beard on the face, feathered feet: for each of these traits that she has, her chicks have a chance of showing it too.
1 Black copper Maran pullet, laying, Chungus, 42 weeks old
With the Black Copper Marans rooster, of course her chicks will be pure Black Copper Marans.
With the Lavender Orpington rooster, chicks should be black. They may show a bit of color leakage as they grow up (red/gold or white/silver in various places.)
1 BCM mix pullet, laying, mother clucker,42 weeks old
She could produce chicks that look the same as the ones from the pure Marans pullet, or she might produce different-looking ones depending on what other genes she's got.
1 Buff Orpington pullet, laying, Mrs. Priss, 39 weeks
With the Black Copper Marans rooster, chicks are likely to show a lot of black when they hatch, but grow up to be black with very large amounts of gold leakage (sometimes that means the front half is gold and the back half is black.)
With the Lavender Orpington rooster, chicks may look like the ones from the Black Copper Marans rooster, or they may show white/silver leakage instead of the gold leakage (so they might have large amounts of black on the back half and large amounts of white on the front half.)
With either rooster, there is a chance of chicks that have the black turned into white (some Buff Orpingtons have a gene that causes this, and some do not.)
1 Speckled Sussex pullet, laying, Mae, 39 weeks.
With the Black Copper Marans rooster, chicks will probably look similar to a Black Copper Marans but with more red/copper color and a bit less black. They should not show speckles like their mother the Sussex.
With the Lavender Orpington rooster, chicks should be mostly black, but may show some leakage as they grow up (red/gold or white/silver leakage are possible, mostly in the breasts of hens and the shoulders of roosters.)
