I have two 3 week old Buff Brahmas. One is supposed to be a male and one a female. I have read a little online that their feathers start to give away whether they are cockerel or pullet. Does anyone know how to tell the difference? One is lighter in color, has more feathers and longer tail feathers and is the aggressive one of the bunch. The other has less feathers, is darker in color and short tail feathers. I'll post two pictures. I'm new at this and hoping someone can tell the difference.