We have 11 hens, two in one coop and nine in the other. Of the flock of nine, I get no more than 8 eggs on any given day (less lately, as it's been hot). In that flock I have 4 black australorps, 1 yellow and white Easter Egger, 1 Rhode Island Red and 3 red stars. No one has the makings of a roo...no spurs, no one's bigger, has larger tail feathers, and no one crows. And yet...this morning we cracked about 8 eggs from the fridge, and all the brown ones (which can only come from this flock as my other two hens are Easter Eggers) looked fertile, with that characteristic white spot on the yolk! How is this possible? These chickens are all about 15 months old, and no one has ever showed "male" signs. Is there anything else that can look like a fertile spot but really be something else? (None were bloody like capillaries were developing, but I've also never seen anyone get broody to get a fertile egg to that point.) I'm so confused!