Has anyone had a Bantam & Full Sized hen have chicks that actually hatched?

[YoYoChick]

I bought sexed pullets for Buff Orpingtons & was "surprised" w/ the 4th chick becoming a Buff fluffy-footed Bantam rooster instead. He is able to hop up on some of the hens & actually fertilizes their eggs. I heard that Bantam/Full sized fertilization rate is pretty low. Has anyone had a mix similar to this? I don't want to have chicks w/ any health problems :-/ . He sure is cute, even though his hormones have finally turned him into a cute, fluffy, funny Chicky-Jerk, Lol.

 

[Amer]

There shouldn't be any health problems resulting from bantams roosters crossed over large hens. The other way around can be more of an issue if the chicks are too large for the bantam sized eggs.