I just finished doing a review for my series Sundae with Nuts and was researching the lyricist/poet Rod Mckuen. I had greatly underestimated McKuen, who died less than 2 months ago at the age of 82. He was much younger when I first became familiar with him. It was in 1974 when his translation of a French work was made into a worldwide hit song. You may find the review linked in Sundae with Nuts (linked above), and in Forest Primeval.
I found a couple of versions on YouTube. Some had much greater production value. I chose this one because it comes closer to the original.