The result was a breed which could be relied upon to produce an average of 200 eggs per year.
In addition to the Indian Runner and Rouen, wild duck (mallard) was also used to make the breed more hardy.
The original Campbell drakes had a dark green head, grey back, pale claret breast, black stern and white ring around the neck.
Drake: Head, neck, stern and wing bar: bronze, brown shade preferred to green bronze. Rest of body: an even shade of warm khaki. Legs and feet: dark orange. Bill: green, the darker the better. Duck: Khaki colour all over, ground as even as possible. Back & wings: laced with an even shade of khaki. lighter feathers on the wing bar allowable. Bill: greenish black. Legs and feet: as near body colour as possible. Head: plain khaki, streak from the eye considered a fault. Campbells are remarkable ducks. They are alert, sprightly birds which in some strains produce over 300 eggs per year.
Their white eggs weigh about 2.5 ounces.
They are hardy foragers, always busily looking for slugs, snails and worms.
They love water - but manage to stay in good condition even when water is only in buckets and bowls.
However, like all ducks, their feathers do stay in best waterproof condition when they have bathing water.
We use children's plastic pools for our campbells.
The average lifespan for a campbell is 7 years.