Hi everyone
THanks loads for the help you all offered. As it turns out this little girl (boy?) is only about 10 weeks old, so I don't know if that helps

The breeder picked out the one with the pinkest comb and wattles and the roundest bottom.
As it turned out, we also ended up with a Blue Splash Orpington, who a fair bit older and bigger, but she's very sweet and definitely a girl, in spite of her huge grey legs.
Anyone up for a definitive guess

as to whether the we're going to have eggs or not from the little black one?