Won't you spread your tail

I never expected to hear this again. It was on Captain Kangaroo back in about 1962. My brother and I made relentless fun of it, singing it over and over. What it is, is Mr. Green Jeans trying to get the resident peacock (it was white, as I recall) to spread its tail by singing this ridiculous song. Someone (oh, who knows who?) used it as the sound track for a clip from an old exercise show, and it ended up on one of those "1950s TV blooper reel" things.