Its so cool! Nice job on the coop.
However, quail are ground-dwellers and are a little different compared to chickens.
Quail do not roost as their feet cannot curl around something like chickens, and they can't climb/fly very well. They only fly when spooked, but fly very quickly, sometimes they even fly straight up and 'bonk' their heads on the roof, as mentioned by USAmma, but most of the time that only happens to button quail. Japanese quail are a little calmer and less likely to bonk, but can still fly very fast when afraid/threatened.
Quail also will not return to a coop at night, they'll sleep wherever they like, mostly where they feel is safe, warm, and easy to access. They can be trained to go into the coop at night, however. Apparently you're supposed to lock them in for a few days with food, water and ventilation so they'll know its safe, and then hopefully they'll realize that they're supposed to sleep in it. Haven't tried, but that's what I read from these forums.
They'll also lay anywhere, so expect eggs in random places. Nest boxes aren't really needed as quail probably won't use them. However, sometimes they'll be encouraged by darkness and a pile of hay to lay their eggs in.

However, quail are ground-dwellers and are a little different compared to chickens.
Quail do not roost as their feet cannot curl around something like chickens, and they can't climb/fly very well. They only fly when spooked, but fly very quickly, sometimes they even fly straight up and 'bonk' their heads on the roof, as mentioned by USAmma, but most of the time that only happens to button quail. Japanese quail are a little calmer and less likely to bonk, but can still fly very fast when afraid/threatened.
Quail also will not return to a coop at night, they'll sleep wherever they like, mostly where they feel is safe, warm, and easy to access. They can be trained to go into the coop at night, however. Apparently you're supposed to lock them in for a few days with food, water and ventilation so they'll know its safe, and then hopefully they'll realize that they're supposed to sleep in it. Haven't tried, but that's what I read from these forums.
They'll also lay anywhere, so expect eggs in random places. Nest boxes aren't really needed as quail probably won't use them. However, sometimes they'll be encouraged by darkness and a pile of hay to lay their eggs in.