Trivia: The hotel concierge is from Belgium but mistakenly thought to be from France, just like Poirot, another Agatha Christie creation.
Trivia: Narrating in 1969, Kya said, "How birds sing mostly at dawn because the cool, moist air of morning carries their songs and their meaning much farther." This is no longer the primary view. Some scientific research found their subject sparrows' songs were louder (or just as loud) at noon than during the so-called "Morning Chorus." It appears the "Morning Chorus" might just sound louder because there are fewer other sounds at that time of the morning to drown them out (i.e, it is quieter). (00:37:15)