If the chicken is around three years old it gradually stops laying as many eggs. The older they are the less eggs they produce. If your hens are two edging closer to three, I would definitely get chicks. But wait until spring. Your adolescent chicks wouldn't like the cold winter with no plumage...
Eggs are 97% protein. So I'd feed your chickens more protein like snacks. Such as roasted peanuts. Meat. Or even a boiled egg or too. Sounds gross but eggs are good for them.
Chickens don't lay eggs when they molt. But 10 months and still no eggs. And it's a leghorn. Leghorns are one of the most productive chickens. Laying about 300 eggs a year. My white leghorns are about 6 months(24 weeks) old, and for the last week or so I've been getting an egg a day from every...