Lyric discussion by natureisthewaytogo 

Cover art for The Sparrow and the Medicine lyrics by Tallest Man on Earth, The

could it be "that's not the reason why we PART" (goes with "...where I left you") & "wishin' it could HEAT up every crow" (goes with the frozen lake) ?

definitely "sparrow in your heart"...

it does sound like "tranquilizer gun in your sweet pair" though pair of what, I don't know.

"with a tranquilizer gun in your sweet HAND," yes?