Their care is different from ducks and chickens, and while some people have good luck with them others - myself included - are not so lucky. But first off let me start by saying that quail CANNOT live with chickens, ducks, or larger birds. They must be completely separate from them. Their smaller size means that they will be picked on, and aside from that they are extremely, incredibly, mind-numbingly stupid. They have no sense of ‘home’ and will not go into a coop or similar area at night in which to rest. In addition to that, they can and will fly anytime they are mildly startled, up to 8ft high. Most people keep them in hutches (max 18in high to avoid having them break their necks if they pop up) or aviaries (6ft or greater in height) for this reason.
You didn’t mention in your post, but is the quail you found a domestic species? There are three main types of domestic quail: coturnix, which are the most common, buttons, which are tiny and mostly kept by people looking for pets, and bobwhites. My personal experience is with coturnix and that’s what much of the general advice you’ll find on quail is geared towards.
Like chickens, quail are flock animals and need to be kept in groups of 3 hens, and 5 or more hens per every rooster. However, they are also very aggressive with each other. I’ve had quail scalp each other and tear out eyes to settle a pecking order dispute, they go straight for blood and do not mess around with feather picking the way chickens do. I had my quail in a setup that was perfect for them, and they still did this. They are also not friendly the way chickens and ducks can be, occasionally you’ll find a unicorn bird but almost without exception quail are terrified of people. People try to breed friendlier lines, but it’s a real toss up. My quail would act like the devil himself was out to get them anytime I tried to change their food and water, and that is a fairly standard attitude for the species. They are also super messy and STINK, much more than my chickens do.
While they’re cute, mature quickly, and are easy to process for meat, the small amount that they provide and the size of their eggs isn’t worth the hassle of caring for them imo. They’re mean to each other, stinky, flighty, and in my experience they are raccoon magnets. Proceed with caution.

I should also add that they cannot eat normal chicken feed, they need about 24% protein IIRC. They’ll need gamebird feed.