A brief update, this time focused on the flocks.
A couple of months ago my GF splurged part of her tax refund on a prefab run for the chickens, to keep them out of my garden and safe from predators. They've been living in there ever since, and the older of the chicks I'd mentioned above have now joined them (the younger ones will go out there in another week or so). Here are a couple of pics of them, loitering around the bottom of a "quail condo" we'd improvised from a 5-tier indoor greenhouse I was no longer using for its intended purpose. Quail are messy eaters, you see, so there are usually treats to be had. 
After using that original quail condo for a month or so, we've learned the shortcomings of our initial design, largely driven by a need for haste (we wanted them out of our living room, as the flock grew) and limited budget. So over the last couple of days I've built an improved version, from my typical "less than shoestring budget" selection of materials. Said materials included: a bread rack from a now-closed bakery, wire cut from a now-decommissioned rabbit cage, some wire mesh, zip ties, the wire used to hold the roll of wire mesh together in its packaging, some of the coated chicken wire left over from the chickens' run, a few pieces from my aunt's old deck, and clean-out trays for the droppings (a crucial "learned experience" addition) cut from the aluminum surround of our torn-out pool.
Here's a rough construction sequence, showing how it all came together. First, we have the rack itself, with the top tier enclosed in bits of old rabbit cage. Shelves are the rack's original shelving, but with wire mesh added so the wee birds' feet don't just fall through. The brown cross-pieces are the scavenged bits of old deck, and will support the clean-out trays under each level.
After I'd gotten that far, my GF realized that each shelf could in fact support two small sub-flocks. So the rabbit-cage enclosure at the top has now been modified to have two doors and a fixed center piece, and all three have dividers down the middle (the cardboard box was just a placeholder for the cleanout tray).
From there, it was just a matter of enclosing the sides with chicken wire, and mounting the doors (zip ties serve as the hinges).
...and here's the end product, with clean-out trays in place.
That gives us eight cages where sub-flocks can go, because we now have a whole bunch of different kinds of quail: the standard Coturnix quail, sometimes apparently called "Pharaoh" after their mention in Exodus (before the manna came quail, if you hadn't remembered that bit), as well as Andalusians, calicos, tuxedos in various colours, and many, many more (I think we have something like 10 or 11 breeds, now).
So the plan for later today is to transfer our existing flocks into the new condo, clean out and renovate the old one (leaving the bottom tier empty, because it was just a PITA to get in and out of), and then separate some of the breeds further into standalone flocks of their own and move them back into the original condo. We do have one more cage we've picked up from the local classifieds, which I'll modify into an over/under "duplex" for the quail.
There is apparently nobody selling breeder flocks or fertile eggs for most of these breeds anywhere east of Ontario (where our own supplier was located), so my GF sees the potential for us to generate a modest side income from selling the specialty quail. Some of them are very pretty, while others show more personality than the regular coturnix (the little "red range" quail are lively, feisty little birds, and make a funny grumbling, chuckling noise that the others don't). We'll see how that plays out.
If time permits, later today I'll try to block out time to get pictures of some of the different quail.