I will try my best to this this sound sane?? Does anyone know how many eggs can be fertilized during a mating session? No, this is not a joke or trick. Our rooster has recently moved to the edge of town where his chronic crowing won't make the neighbors grumpy. Our hen is more than welcome to have shall I say congical (sp) visits. Do I need to leave her there until she lays a few eggs or, will she lay, back here, after a "visit", sleepover"? Thanks, for your input.