Zombie chicks

[Crazyfarmlady25]

I've been trying to learn how to sex zombies (before I get some) since they are suppose to be to tell after hatching. The pics I've found on Google have me confused if I can tell or not. I've heard pullets will have dark face and legs while roos will have yellow legs and beak. The ones below are what I could find on google/fb and just not sure cus some the beaks have a darker spot but not all the way. And some have black legs but yellow tows. I just wanna know for when I get my straight runs. First pic to me looks like mostly roos (though not a great angle)? pic 2 the one in the front in center of pic I think is a female? Pic 3 all look like roos? Pic 4 is one with black legs but yellow toes.