Okay, it's the 4th day of Xmas here now. Trying to get my head around the four calling (or colley) birds. Don't see any astrological significance, ravenest, but they are probably ordinary blackbirds, not the noble corvus.
Sing a song of sixpence a pocket full of rye,
Four and twenty blackbirds baked in a pie.
When the pie was opened the birds began to sing,
Oh wasn't that a dainty dish to set before the king?
The king was in his counting house counting out his money,
The queen was in the parlour eating bread and honey
The maid was in the garden hanging out the clothes,
When down came a blackbird and pecked off her nose!
