chronic respiratory issue getting bad

[ivan3]

We lost a BSL hen that exhibited what appeared to be a respiratory illness (open mouthed breathing/lethargy-tip her up so head was toward ground and would get drops of serosanginous fluid dripping from beak). She suffered for two months and died. Opened her up that evening and discovered a huge tumor that appeared to have had its origin in reproductive tract. This was pressing into the air sacs and she was unable to take full breaths. Just a thought.