Many chickens sick. What do they have?

[Mochi_AtMaui]

several of my chickens, age ranging from a few weeks to multiple years old have been showing alarming signs of illness. Weight loss, poor appetite, diarrhea, lethargy, and rattling breathing. im not sure what could possibly be causing this, what it is, how to treat/prevent it. anything helps.

 

[casportpony]

Where do you live?

 

[Mochi_AtMaui]

maui, hawaii

Where do you live?

 

[casportpony]

Have you checked them to see if they have lice or mites?

 

[Mochi_AtMaui]

Have you checked them to see if they have lice or mites

yes. i brought one of them to a vet and she was treated for lice

 

[casportpony]

You should treat all of them for lice, maybe deworm them too.