We have a White Leghorn named Cupcake I'm pretty sure is a roo, but at 19 1/2 weeks old still isn't crowing or laying. At what age do White Leghorns typically crow or lay? I thought it was between 17 and 19 weeks. The first picture is Cupcake at 17 1/2 weeks. The second is at 19 1/2 weeks. What do you think? Is he a late crower? Or is she going to lay any day now?