If you're trying to breed to the Standard of Perfection, you will simply be breeding for type. However, some coloring and lacing can be evaluated. Any red or yellow feathers (and I'm talking about single feathers) can be pulled and the bird watched to see if they regrow. You'll need to make notes somewhere and remember to check. It takes about 6 weeks for the big feathers to grow back in so probably around 4 weeks for a smaller one?
A black bird, when it is grown, can be taken out in strong sunlight and then evaluated for strength of lacing. It will show up. A splash bird will hopefully have some faint lacing around the edge of its feathers.
Depending on where you got your birds, you may or may not have well laced birds in your possession. It's up to you whether you want to struggle along and try to improve them. In fact, it's probably a good idea to try. That way you find out what your level of commitment is and if you haven't had chickens before, you can learn what you need to during this time regarding their needs and care. If you want to be a breeder, you need to be able to kill birds... at least it will feed your family.
