GLW's at 30 weeks

[hobbychook]

Im still finding it hard to categorically pinpoint the gender of my Wyandottes...they all seem to have tail feathers like pullets but one or two could be young roos. At what age should they start laying??
It's cooling down here in NZ, mid Autumn so wondering if they may start later?

I have three other old hens and egg production has basically stopped so wondering if, with the drop in temp, they are just temporarily off the lay?
Any input appreciated

 

[sourland]

They are all pullets. Middle front bird in the second picture is about to start laying. Your shortening day length may put them off a bit more so than the temperature drop.

 

[drumstick diva]

all girls

 

[hobbychook]

Thanks so much, made my day.
I was all but certain they were girls too, but my previous thread asking the same qn with the photos of the younger birds got 50/50 answers.