What the chicks of a Barred Plymouth Rock and a Legbar look like and lay, worked out from both breeds' standards.
A Barred Plymouth Rock hen crossed with a Legbar rooster gives you what keepers call a first-generation (F1) cross. Every pullet should lay green eggs (some may be blue or olive): both sides pass the blue gene. Every chick gets a single comb. Most chicks (75%) are barred. Expect a medium bird, a good layer, calm, the average of the two parents.
Preset to a Barred Plymouth Rock hen and a Legbar 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.
Probably Olive (possibly Green): 50–100% blue-based; otherwise Brown.
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 | Barred Plymouth Rock hen | Legbar rooster | Chicks |
|---|---|---|---|
| Comb type | Single | Single | Single |
| Barring | Barred | Barred | Barred 75% · Not barred 25%sex-linked: ♂ 100% barred, ♀ 50% barred · 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 | Yellow | Yellow | Yellow |
| Leg color | Yellow | Yellow | Yellow likely (both parents share it) |
| Trait | Barred Plymouth Rock | Legbar | Chicks |
|---|---|---|---|
| Frame height | medium | medium | medium |
| Egg production | good layer | good layer | good layer |
| Broodiness | sometimes broody | rarely broody | sometimes broody |
| Docility | calm | easygoing | calm |
| Bone density | medium | medium | medium |
| Foraging skill | good forager | good forager | good forager |
| Cold hardiness | very cold-hardy | fairly hardy | 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.