Hen seems to be sneezing, watery eyes & squinting (partly shut when relaxed)

[dluke25]

I've done enough research to realize it could be hundreds of things... I live in Louisiana, it's hot, but the chickens have plenty of shade & water. This is one of my friendly free range bantams, not in the coop, but in a flock of about 6 that cruise the yard and sleep on a shelf by the back door. Just started making this sneezing chirping sound 2 days ago. This morning noticed eyes appearing watery and squinting. Any probabilities, or what I might look for to treat..? Thanks in advance

 

[Wyorp Rock]

Photos?

How long have you had them?
How old are they?

Watery/squinty eyes - general care is to flush with saline, see if there's any debris, pus, injury - access the eye. Terramycin eye ointment can be put into the eye to soothe it.

How frequent is the sneezing? Does she sneeze during/after drinking/eating or dust bathing? Is it just a random sneeze here and there?

Look inside the beak for any lesions or canker.

Watch to see that she's eating/drinking well and that her crop is emptying.