First year with Khaki's

[Invision]

I have 4 hens and one drake, I've been getting 2 eggs for 2 months now and got a third (a day) couple weeks ago. these birds are about 6.5 7 months old. what's the latest they will lay?

and do they lay without artificial light during winter?

 

[Kevin565]

How much daylight do you normally get during the winter?