When I first heard the wildlife version (downloaded it), i thought the words were, "birds are flying out life endless dreams inside a paper cup..." haha.... I had sung it like that forever until I got the real version and listened carefully!
But the regular versions (without the bird noises) don't seem to flow beautifully into the song... they just start abruptly... I don't think it was handled well...
I imagine the wildlife one was how John really wanted it (because he was not involved in the Let It Be or Let It Be... Naked mixes
), so that's why I like it the most... Plus the bird noises make it flow perfectly...