I have hatched and sexed a few thousand Legbars over the years. All the replies here are correct, those are all pullets.
The amount of cresting and the shade of brown to grey varies quite a bit with the various lines of legbars out there.
There is no SOP yet for Legbars, but it is generally accepted that they should be homozygous for the cream, cresting and blue egg genes in order to be called "Cream Legbars". Some breeders are keeping non-cream lines, often called "Gold Legbars" to distinguish them.
The Cream gene dilutes all the brown to grey, so any Legbar showing brown colors is not pure for the recessive cream. The Cresting gene is partially dominant, so the small crests are also not "pure", and if bred will throw some chicks with no crests at all, obviously not what breeders should be going for.
Finally, the blue egg gene is fairly well fixed in lines of cream legbars, but the new Opal Legbars, with lavender genes from Isabel Leghorns, often is not homozygous for the dominant blue egg gene. This is particularly hard to correct because the recessive white egg gene hides very well in these birds. There is a genetic test to help breeders fix this, but it can be quite expensive to test enough birds to get a homozygous flock.
Anyone wanting to breed quality legbars should look for top quality stock to get started. It is time consuming to fix these traits and much cheaper in the long run to buy stock that has the proper genetics.
