Chilly Chickens

How old are they? They may be past their prime laying years, or even their laying years altogether. Did they go through a molt or partial molt after you got them? It may be they will start laying some in spring.

They don't need treats or especially scratch, and if you give very much of either, you may be cutting down on their nutritional needs. Most scratch feeds are low in protein, and scraps are often low in protein as well.

 

What breeds? My silver laced Wyandotte didn't lay her first egg until about 6 1/2 months old. I thought I would wait forever! I was so excited when I found it in the nesting box. Maybe they are a little younger than were told when you got 'em, and they will lay soon?

 

You say "about 6-7 months".... is it possible they're younger? I'd say keep toughing it out, they'll lay when they're ready.... Although it may seem like forever to us humanoid type organisms.

 

It could also be the time of the year with it's shorter days. Sometimes when they reach maturity in the late fall early winter they hold off starting till the days get longer.

 

FYI you should not feed layer feed until they are actually laying eggs so they don't get a calcium overload, you should instead still be feeding the chick starter grower...

Do they have nesting boxes?
Do you have a 'fake' egg in the boxes?
Not knowing your location are you supplementing light so they get 14-16 hours?

There are so many little factors that come into play and some birds just start later then others, especially once the cooler weather and shorter days set in...

Make them comfortable, I would cut out the treats forcing them to a balanced diet for now, and offer them a side of oyster shells... When they are ready they will start to lay...