Of my 7 pullets (from your eggs), at least 5 are laying regularly and have been for 3 or 4 weeks (they are 26 weeks old this week). It is easy to see which ones are laying by their combs. AT POL, their combs grew and flopped over (like they are supposed to). The eggs are 1.4 - 1.6 oz at this point.Yes, they may wait until spring before they start laying. It is one of the problems that many neglected breeds suffer. With no one doing selective breeding for egg production, they quickly lose their prominence as "The Everyday Layer." I am pleased that I am seeing much improvement during the spring and summer, but once molt sets in, they are not performing like I'd like. I was lucky to get an egg or two a week from the first Campine hens I acquired. Now, they are in full production in early February (with lights) and lay four to six eggs a week per hen through July. Molt usually starts mid August and production bottoms out. Some will pick back up in October and lay one or two a week until I start the lights on them again in December. Once they are closer to standard, and I am getting more consistency, I can start hatching more winter eggs to produce more winter layers.
With that said, Soly looks like she may already be close, or possibly is hiding eggs from you. Look at that nice red comb........