No one may whistle or sing on the streets at night.

Sec. 54-158. Yelling, shouting, etc. Yelling, shouting, hooting, whistling or singing on the public streets, particularly between the hours of 11:00 p.m. and 7:00 a.m., or at any time or place so as to annoy or disturb the quiet, comfort or repose of persons in any office, or in any dwelling, hotel or other type of residence, or of any persons in the vicinity, is unlawful. (Code 1981, § 27-8)