Fertile or fertilized?

[SheriLou]

Pics 2 and 6 look most likely to be roosters. How old are they?

I managed to catch 2 more sneaks when they weren’t suspecting pictures

 

[chickennuggt]

Yes two of the yokes have a dot in them so their fertilised

 

[MysteryChicken]

So there is 17 of them. Word travels fast when I started taking pictures and they scattered on me. Here’s some of my suspicious characters that won’t let me too close. View attachment 2896355

All are pullets.

 

[Skyle]

All are pullets.

X2

 

[Tired old Rooster]

I suspect you have some guys in skirts there.