I attempted to do the Trader Joe's experiment. Being the nerd that I am, I stuck in a refrigerated "control egg" from my own flock. I grabbed it out of the fridge because it was nice and speckled and pretty. I have no idea who laid it. I get them like this from time to time. Unfortunately all of my Trader Joe's eggs were duds. But the mutt from my flock persevered and hatched this morning. I'm trying to figure out who the momma is. To make it more interesting I just noticed that the chick has half-feathered legs! I only have 2 feather legged girls in my coop and one is not laying and the other is a banty (and I can easily identify her egg, this was not it). I've hatched out chicks before with my rooster, around 2 dozen, and no feathered legged chicks except when the mom was one of the two listed above. The rooster is: The egg was: The chick: As the egg was large fowl and brown the possible mothers are (and all Murray McMurray with one exception; I've also marked the ones I'm fairly certain didn't lay it): RIR Black Star Red Star Barred Rock Buff Orphington (pretty sure they are were not laying at the time) Cuckoo Marans Black Giant Partridge Rock GLW (who was not laying as she was raising chicks) Speckled Sussex (who hasn't laid an egg and is almost a year old) Dark Brahma (not laying) NN (not laying) NN (not from Murray McMurray but clean shanks) What do you guys think?! Who is the mommy?!