i dont think it unsettles the birds by cleaning them everyday ,they get used to it its a regime they know whats coming ,find it makes them more calmer banging about there boxes etc ,the cocks always wanting to fight you ,espeacily everyday before i go to work ,makes your morning when your tired knowing the birds trust you and look forward to seeing you when you come home banging about again cleaning them out.i cannot think of anything worse then standing in crap i love to sit in my loft with me birds but i wouldnt like to sit in there with rotting straw and not cleaning them out :-/