The reply that I quoted below seemed pretty clear. About an egg a day, sometimes they skip a day or several, once in a while they will lay more than one in a day.I already asked this but can someone please clarify me on how many times a year a quail lays eggs? Like if they are laying now in September will they lay next year in like February or June? Or is it like every month? Every two months?
Edit: From what I understand, they will lay more regularly if they have 14 or so hours of light per day. If you want the math, that is approximately 1 egg/day x 365 days in a year, so somewhere around 350-370 egg/year. If you leave them with natural light, I would expect less during the winter.
Healthy Japanese coturnix quail hens will lay an egg a day, more or less, for a couple years after they start laying eggs, and will slow down production of eggs after that. It takes their reproductive system a bit of time when they first start laying though to get on schedule and work out all the kinks. I'm guessing that this is the first time that you have raised quail, chickens, or any birds that lay eggs, so I'm linking "Getting Started in Raising And Keeping Quail" to help you along. https://www.backyardchickens.com/articles/getting-started-in-raising-and-keeping-quail.67344/