One of the odder first words that our fourteen-month-old daughter uttered, today, was "bird of prey". It's a bit of a stretch from what she's actually muttering ("bi' oo' peyb") but she's clearly repeating a line from the song I sing while holding her aloft. She's said it a few times in the expected context.
This is the otherwise forgettable song by Fatboy Slim sampling Jim Morrison that she's unknowingly singing. The video's worth watching if nothing else.