Mimicking Birds 
The Loop

Tuning - B A B Gb B E

Intro / Verse

----------------------------|
----------------------------|
------4h5--0-----0-----7\-2-|
---2/4-------4/6---6h7------|
----------------------------|
-0--------------------------|

Play that throughout the whole song.
And that's pretty much it, not sure how he tunes the other strings,
but he doesn't use them, so it doesn't matter