Sick Coturnix, swollen head

[Soccerchick240]

6mo female Coturnix quail with swollen right side of face, top of head, and slightly around left eye for 3.5 days.

No known trauma. Separated and under a heat lamp with food and electrolytes. Using VetRx some but it gets stressed when I mess with it to put it on (normal for my quail). Pooping normally... moving normally… does not seem to be able to see out of right eye. Other 4 females and 1 mail quail are fine. They live outdoors in a small quail tractor enclosure with grass base.

Any idea what’s wrong with it?
Anything else I should do?

 

[vall]

Could be a head bonk. How tall is the roof?

 

[Nabiki]

That doesn't look like a head bonk to me. There's swelling around the eyes and cheeks. If I were just looking at the eye, I would think mites, but the cheek swelling looks like something else.

@007Sean ?