たつとりあとをにごさず

立つ鳥跡を濁さず

表記・読み：立つ鳥あとを濁さず・立つ鳥後を濁さず・発つ鳥あとを濁さず・発つ鳥後を濁さず・発つ鳥跡を濁さず・たつとりあとをにごさず

1. 1

   it is simply common courtesy to clean up after yourself; a bird does not foul the nest it is about to leave; on leaving a place, one should see that all is in good order

   expressions (phrases, clauses, etc.)proverb