Hi, I'm Pattii from Napa. 4 months ago I got 8 two day old chicks, we lost two to the sky falling and a hawk calling. The remaining 6 are a really fun addition to our family. 3 are Cochins, 2 are Plymouth rocks and 1 buff Orpington. We thought everyone was a hen until this morning when somebody did what sounded like a cross between a crow and a croak. How old are they when you can really tell the gender?