Well, here's my totally politically incorrect tail tale, guaranteed to raise the feathers of the Religious Right! (And NOW, too, no doubt!)
Sonja

Emu Bird Thrill
(Or the Old Maid's Excellent Fantasy Adventure)
Parody lyrics by Sonja W. Oates
Tune: Mockingbird Hill

When the moon Monday evenin crept over the hill
And kissed my old bod' there by my window sill,
How my heart filled with rapture when I saw the sil-
Houette of that man with his Emu Bird build!

    "Ooh-la-la! Pitter-te-hee-hee!"  It gave me a thrill
    To look out of my window at that Emu Bird's Build.
    "Ooh-la-la! Pitter-te-hee-hee!" There's a piece for me still!
    I'd welcome bein' deflowered in an Emu Bird Thrill.

He'd a three-foot long neck and big eyes that could kill
And I drooled at the thought of his takin' my will!
Then I tumbled down backwards-- a nasty ol' spill! --
In my home at the thought of that Emu Bird's build.

    "Ooh-la-la! Pitter-te-hee-hee!"  It gave me a thrill
    To look out of my window at that Emu Bird's Build.
    "Ooh-la-la! Pitter-te-hee-hee!" There's a piece for me still!
    I'd welcome bein' deflowered in an Emu Bird Thrill.

Now, it's late in my years, never needed "the pill,"
And I'd not leave this life while I've 'everything'  still.
Picture me in the thighs of that cock with the quills
Doin' wrong in the moonlight, 'cause he fills the bill!

    "Ooh-la-la! Pitter-te-hee-hee!"  It gave me a thrill
    To look out of my window at that Emu Bird's Build.
    "Ooh-la-la! Pitter-te-hee-hee!" There's a piece for me still!
    I'd welcome bein' deflowered in an Emu Bird Thrill.

Just for comparison, here are the original lyrics:
Mockingbird Hill

When the sun in the morning creeps over the hill
And kisses the roses 'round my window sill,
How my heart fills with rapture when I hear the trill
Of the birds in the treetops on Mockingbird Hill!

Chorus:
"Tra-la-la, twittle-de-dee-dee,"  It gives me a thrill
To wake up in the morning to the Mockingbird's trill!
"Tra-la-la, twittle-de-dee-dee,"  There's peace and good will
You're welcome as the flowers on Mockingbird Hill.

Got a three-cornered plow and an acre to till
And a mule that I bought for a ten-dollar bill.
There's a tumble-down shack and a rusty ol' mill,
But it's my home, sweet, home up on Mockingbird Hill.

When it's late in the evening I climb up my Hill
And survey all my kingdom while everything's still,
Only me and the sky and an old whip-poor-will
Singin' songs in the twilight on Mockingbird Hill.

spelling fixed & chorus inserted by mudelf ;-)