P.S. - "crushed lime" is NOT the same as "hydrated lime". Crushed lime (or known as garden lime, ag lime) is safe for animal contact. Hydrated is not, but it's more effective.
I really don't have a clue, hope others will --- but I do know that using hydrated lime can clean a barn, corral, run, etc. of most harmful bacteria and parasites. It's caustic to your skin, so use gloves and do NOT put birds back in there until next year. Hoping others will chime in with how...