Comb growth and redness at a young age leans cockerel. At 12+ weeks saddle, hackle and sickle feathers become apparent. Saddle feathers are long, pointy feathers protruding from just before the tail area. Hens have these too, just not long and rounded. Hackle feathers are pointy neck feathers in...
All birds pictured are pullets. The rule of thumb is 4 square feet in the coop and about 10 square feet in the run. For 6 birds you would need around 24 square feet in the coop and 60 square feet in the run.