Khaki Campbell
A variant of Domestic duck (Anas platyrhynchos domesticus)

Representative Domestic duckphoto — a dedicated image of this exact morph isn't available yet.
A khaki-brown lightweight breed bred in England as one of the most prolific egg layers, rivaling production hens. Active foragers.
Keeper tips for this variant
For top egg output give them a layer-grade ration with added niacin and let them forage — they're flighty, so a secure low run keeps them calm and laying.