Yes, it can.
Keep the dogs from ever getting near the chickens off leash until you can trust the dogs completely...could take up to a year or two.
Lots of variables here in how you train.
Are they free range birds?
Might want to confine them for a couple days to 're-home' them to the coop nests.
Free range birds sometimes need to be 'trained'(or re-trained) to lay in the coop nests, especially new layers. Leaving them locked in the coop for 2-3 days can help 'home' them to lay in the coop nests. They can be confined to coop 24/7 for a few days to a week, or confine them at least until mid to late afternoon. You help them create a new habit and they will usually stick with it.
They are free range for the most part. All the others are still laying and laying in the coop. I'll try it and leave them locked in. I just feel horrible for doing it because they were "cooped" up all winter.
