Wyandottes have rose combs, Delawares have single combs. Delawares have barred hackle (neck) feathers, whereas Columbians have black-edged-in-white hackle feathers.
thanks so much i just found 12 delaware hens at 5mo old for 70 the fella said he wasnt sure what they were. i informed he what they were and he stuck to the price instead of raising it. delawares are very hard to find around here.