Department of Entomology

Lice have been found feeding on the skin and blood of free-range chickens, which are infected at much higher rates than caged flocks. This finding could have implications for states like California, where all egg production is cage-free. 

Links to original article:

https://news.ucr.edu/articles/2024/07/17/cage-free-chickens-are-louse-y

https://www.morningagclips.com/study-finds-lice-causing-significant-harm-to-poultry/