Helpful info:
Sq. footage of coop and run.
Number of birds in flock.
Free range?
Giving them grit?
What are you using for bedding?
Any insecticides/herbicides used on property within last 5 years?
How long have you had them on layer?
Signs/behavior of birds prior to death? Have you done a necropsy of any dead birds to see if you can find any issues?
General location. (state, climate helpful info.) many people put this info in their profile.
Thoughts: If new construction, perhaps paint fumes or other toxins. Using pressure treated wood? Using bleach in and around the coop could be causing the deaths. Bleach in and of it'self can be deathly to birds who have a much more sensitive respiratory system than we do. And if the bleach combines with any fumes from ammonia (break down product of animal protein, feces, urates, etc) it will combine to produce deathly Chloramine. How often have you wormed them? I'd not worm birds unless worms were diagnosed at a heavy enough load to warrant worming. I'd certainly not worm as a preventative.
Sq. footage of coop and run.
Number of birds in flock.
Free range?
Giving them grit?
What are you using for bedding?
Any insecticides/herbicides used on property within last 5 years?
How long have you had them on layer?
Signs/behavior of birds prior to death? Have you done a necropsy of any dead birds to see if you can find any issues?
General location. (state, climate helpful info.) many people put this info in their profile.
Thoughts: If new construction, perhaps paint fumes or other toxins. Using pressure treated wood? Using bleach in and around the coop could be causing the deaths. Bleach in and of it'self can be deathly to birds who have a much more sensitive respiratory system than we do. And if the bleach combines with any fumes from ammonia (break down product of animal protein, feces, urates, etc) it will combine to produce deathly Chloramine. How often have you wormed them? I'd not worm birds unless worms were diagnosed at a heavy enough load to warrant worming. I'd certainly not worm as a preventative.