Back yard chickens
Our current air quality is 346. I have the chickens (2.5 months old) in the backyard and free ranging. I figured they'd be ok there where they can get under bushes/shrubs. We only have a temporary run they've been staying in so it's open air. At what point should I move them inside? Obviously we'd evacuate with them if it gets to that point.
Clackamas County Oregon
With the increased hazardous air quality it is recommended to have them indoors (typically in a coop - you can cover with lightweight material. A box fan with a filter attached can be used at one side to provide some cleaner air if possible. If not possible watch for signs of distress - runny or swollen eyes, reduced laying, etc. Make sure their feed is protected from ash fall and change their water several times a day.