Winter proofing a quail aviary

It's zone 7b, so not terribly cold, but the garden can definitely freeze to the ground. The aviary has a shade cloth and a waterproof tarp, and "screens" along the bottom, which are parts of a modular cage. I still have enough parts to reassemble the modular cage indoors, in case of emergency. Quails should be fine if they're protected from wind and rain/snow (don't get wet). The aviary is also surrounded by a fence that protects it from larger creatures, like dogs or careless humans, and that fence blocks some wind and cold too. I added a transparent tarp on the west side, from which the strongest cold winds usually come. Then filled it with ginormous piles of straw and hay. Quails love hay. There may be an egg lost somewhere in all that hay, because I found one less today...
Here is a picture of Ramen the roo, looking forward to winter!
According to the deep litter method, the idea is to keep adding stuff on top of that, maybe even until spring.

Hay or straw bales make an excellent temporary shelter wall to protect against cold temps, wind and snow.