Gapeworm?

[frussell]

One of my hens is hoarse, stretches her neck with her mouth open, shakes her head, comb is pale. No noise when breathing or in her chest. No runny nose or eyes. Haven't heard coughing. Eating and laying. Could this be gapeworm? Isa Brown, 2 years old My vet doesn't do poultry.

 

[Kiki]

More likely a respiratory disease.
Can you take a clear video of her and upload it to YouTube?