Digression, but magpies or crows have long been a part of folklore. There is a counting rhyme based on seeing crows. It may tie in with the song(s) subject Joybell is seeking.

One is for bad news
Two is for mirth
Three is a wedding
Four is a birth
Five is for riches
Six is a thief
Seven is a journey
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The following were made up and added in a book by Heidi Holder, artist:

Eight is for grief
Nine is a secret
Ten is for sorrow
Eleven is for love
Twelve is for joy tomorrow.

Heidi Holder got the first seven from her grandfather and never discovered anything about the origin.
Anyone ever heard of this rhyme?

Heidi Holder, 1987, "Crows, An Old Rhyme." Farrar Strauss Giroux, NY.
A beautiful book. Also see her "Aesop's Fables."