An old saying my mum used to say that kinda stuck even though I don't like it... "A whistling woman and a cackling hen - is neither good to God nor man" - another version is crowing hen..
No can't sing neither. When I was in the Navy I used a bosun call (sort of a whistle thing) to pipe 'wake wakey' at 7 am , 'up spirits' at 11:30 am, 'hands to muster for grog' at 11:50,calll the first dog watchmen, last dog watchmen etc... Sometimes had to pipe an Admiral aboard also. Canadian Navy.