mites or lice infestation

hi Reddit. This isnt my chicken but a friend who I'm housesitting for.

There are little tiny bugs EVERYWHERE in this coop and before I unleash Armageddon, I'd like to know whether these are mites or lice-- and if anyone can tell what specific type. We live in a tropical climate on Hawai'i island, if that helps.

They're present during the day and night, all over the hens' feathers and bedding. her eggs have just started pipping, and I can see bugs entering thru the air hole. Seems like they're particularly concentrated on the skin of her face?

Any advice on what type of pest this is would be appreciated, and how to go about clearing out this infestation ASAP-- both for the newborn chicks and the rest of the flock. TIA!