Look at the neck hackle feathers. Males generally have pointed neck hackle feathers, females have rounded feathers there. Notable exception is the Seabright Bantams ( both gold and silver ) where both sexes have round feather neck hackles.
Some tears ago, I purchased some started pullets which were described to me as "Hubbard Golden Comets". Are they the same thing as the ISA Browns ( which are also called Hubbard Browns or Shaver Reds)? They were like the photo in the breed description and had the same characteristics as...