It could be allergens. All animals can have allergies, not just people. Poultry traditionally are considered a short lifespan livestock [18 months] so no true research has been done for most of anything really including treating for sickness. Unless it affects the bottom line of big agri-business.
Think back to any other instances you have mentioned. What time of year, what were the weather conditions like, how did the weather affect the coops or runs how easy it is for wild birds to interact with your chickens? Try to find a pattern if you can which can help identify the cause.
I have read a lot of research lately on Oregano Oil being used as a natural anti-biotic. dosed weekly into the water. But this is more of a preventative than a treatment for an outbreak.
How are you treating the affected birds?
and to answer your earlier question I believe random sickness happens more often than people think. Most recover quickly on their own but at certain signs should be treated aggressively as they can go from not feeling well to dead in a matter of minutes. Once again that is because of the lack of research due to poultry being a short term livestock.
Think back to any other instances you have mentioned. What time of year, what were the weather conditions like, how did the weather affect the coops or runs how easy it is for wild birds to interact with your chickens? Try to find a pattern if you can which can help identify the cause.
I have read a lot of research lately on Oregano Oil being used as a natural anti-biotic. dosed weekly into the water. But this is more of a preventative than a treatment for an outbreak.
How are you treating the affected birds?
and to answer your earlier question I believe random sickness happens more often than people think. Most recover quickly on their own but at certain signs should be treated aggressively as they can go from not feeling well to dead in a matter of minutes. Once again that is because of the lack of research due to poultry being a short term livestock.