Orpingtons are a "soft feathered" breed, in official parlance. The feathers don't lay as flat, and the base of the feather is often less zippered up by way of the barbs, so there is more floof. English having softer feathering than American Orps.
Australorps (and many other breeds) are "hard feathered", giving the smooth sleek appearance.
Some breeds are intermediate.
*nods*
It's those close-fitting, harder feathers that I want because of the greater heat-tolerance vs. the soft, fluffy types.
Many Australorps have close fitting soft feathers.
Would you happen to have photos showing the difference?
It would be educational to see that clearly.
