If someone is in a good mood and walking along there is no reason they can't whistle or hum. If you are in an office then constantly whistling to amuse oneself is irritating to those around you. If the woman is whistling at one of the opposite sex it's just as rude as a male whistling at a woman.
The present participle for "whistle" is "whistling."
There It Go (The Whistling Song) by Julez Santana
Whistling Warbler was created in 1878.
Whistling Smith was created in 1975.
Whistling in Brooklyn was created in 1943.
Whistling in Dixie was created in 1942.
Whistling Heron was created in 1824.
Not 100% sure on this but "The whistling wind"?
Not so much bad luck but in Slavic countries it is said to bring poverty. And in other countries pest animals like mice or snakes. Whistling on-stage is considered very bad luck indeed.
The duration of Whistling Smith is 1620.0 seconds.
The duration of Whistling in Brooklyn is 1.45 hours.