Did 'The Twelve Days of Christmas' lyrics once say 'colly birds' instead of 'calling birds'?

But some social media users have suggested a noticeable difference in one popular song in particular — "The Twelve Days of ...
Investopedia

Comprehensive Guide to Call Reports in Banking: Key Facts & Benefits

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...