On the Fourth Day of Christmas...

...my True Love gave to me, 4 calling birds...

representing the 4 Gospels: Matthew, Mark, Luke and John

Interesting side note on this one. The original was "four colly birds," not calling birds. Colly is old English for black - blackbirds.

An unrelated Christmas song
A Virgin Unspotted - click to play music

1. A Virgin unspotted, the prophet foretold,
Should bring forth a Savior, which now we behold.
To be our Redeemer from death, hell and sin,
Which Adam's transgression had wrapped us in.

Chorus
Then let us be merry, put sorrow away,
Christ Jesus, our Savior, was born on this day.

2. At Bethlehem city in Jewry, it was
That Joseph and Mary together did pass,
Alt for to be taxed with many one more,
Great Cesar commanded the same should be so. Chorus

3. But when they had entered the city so fair,
A number of people so mighty was there,
That Joseph and Mary, whose substance was small,
Could find in the inn there no lodging at all. Chorus

4. Then were they constrained in a stable to lie,
Where horses and asses they used for to tie:
Their lodging so simple they took it no scorn,
But against the next morning our Saviour was born. Chorus

5. The King of all Kings to this world being brought,
Small store of fine linen to wrap Him was sought,
But when she had swaddled her young Son so sweet,
Within an ox manger she laid Him to sleep. Chorus

6. Then God sent an angel from Heaven so high,
To certain poor shepherds in fields where they lie,
And bade them no Longer in sorrow to stay,
Because that our Saviour was born on this day. Chorus

7. Then presently after the shepherds did spy
Vast numbers of Angels to stand in the sky;
They joyfully talk and sweetly did sing,
To God be all glory, our heavenly King. Chorus

8. To teach us humility all this was done,
And learn we from thence haughty pride for to shun:
A manger His cradle who came from above,
The great God of mercy, of peace, and of love. Chorus