Treating chickens for lice

[1cshook]

I'm not sure if my small flock has a problem w/lice, but I wonder if I should treat them "just in case" ... if so, what do you use? They are about 18 months of age ... it is very hot, humid and dry in this part of the country. They free range about 2 hours each day ...

 

[CluckerCottage]

Look at their vent area-- do you see moving bugs or clumps of white around their feather shafts?
If yes, they have lice.
Browse around here: https://www.backyardchickens.com/newsearch?search=lice&=Search

It's always a good idea to have a dust bathing area filled with clean wood ash and DE.
That will help your chickens keep their external parasites down.