What the chicks of a Black Copper Marans and a Dominique look like and lay, worked out from both breeds' standards.
A Black Copper Marans hen crossed with a Dominique rooster gives you what keepers call a first-generation (F1) cross. The pullets should lay brown eggs: there is no blue gene in this cross. Most chicks (50%) get a rose comb. Most chicks (50%) are barred. Expect a medium bird, a good layer, calm, the average of the two parents.
Preset to a Black Copper Marans hen and a Dominique rooster. Change either side to see how the blue gene and the brown coat move the shell colour.
He never lays, so his blue gene is read from his mother's eggs.
Too uncertain to call: 0–100% blue-based (Olive if it is, otherwise Brown). Add lineage to narrow it.
Brown shade shifts with a hen's age, diet and stress, so identical genes still lay a little differently. Speckling and bloom are cosmetic and not modelled.
| Trait | Black Copper Marans hen | Dominique rooster | Chicks |
|---|---|---|---|
| Comb type | Single | Rose | Rose 50% · Single 50% |
| Barring | Not barred | Barred | Barred 50% · Not barred 50%assumes the sire carries not barred, so it could be 0%; a hatch or a known genotype can confirm (uncertain) |
| Fibromelanosis | Absent | Absent | Absent |
| Skin color | White | Yellow | White 50% · Yellow 50%yellow depends on a hidden carrier, so it could be 0%; a hatch or a known genotype can confirm (uncertain) |
| Leg color | Slate | Yellow | varies: polygenic, parents differ |
Barring and silver are carried on the Z chromosome, so which parent is which changes the chicks.
| Trait | Dominique hen | Black Copper Marans rooster | Chicks |
|---|---|---|---|
| Comb type | Rose | Single | Rose 50% · Single 50% |
| Barring | Barred | Not barred | Barred 50% · Not barred 50%sex-linked: ♂ 100% barred, ♀ 0% barred |
| Fibromelanosis | Absent | Absent | Absent |
| Skin color | Yellow | White | White 50% · Yellow 50%yellow depends on a hidden carrier, so it could be 0%; a hatch or a known genotype can confirm (uncertain) |
| Leg color | Yellow | Slate | varies: polygenic, parents differ |
♂♀ This direction is sex-linked too: barring.
A Dominique hen crossed with a Black Copper Marans rooster gives you what keepers call a first-generation (F1) cross. The pullets should lay brown eggs: there is no blue gene in this cross. Most chicks (50%) get a rose comb. Barring is sex-linked in this direction: the cockerels hatch barred and the pullets do not, so the chicks can be sexed on hatch day. Expect a medium bird, a good layer, calm, the average of the two parents.
| Trait | Black Copper Marans | Dominique | Chicks |
|---|---|---|---|
| Frame height | medium | medium | medium |
| Egg production | fair layer | good layer | good layer |
| Broodiness | rarely broody | sometimes broody | sometimes broody |
| Docility | easygoing | calm | calm |
| Bone density | medium | medium | medium |
| Foraging skill | good forager | good forager | good forager |
| Cold hardiness | cold-hardy | very cold-hardy | very cold-hardy |
Chicks land near the average of the two parents for these traits. Reaching one parent's extreme takes another generation of selection.
This is the breed-standard version. Add your flock, set a breeding goal, and the pairing engine ranks every hen and rooster you own against it. Free for up to 15 birds.
Checked September 2026. Hybrids and breeds no reference covers are marked approximate. Egg colour on these pages follows one rule: Brown is any shade a buyer would call brown; Cream/tinted is off-white.