White-rumped Shama
The white-rumped shama is not native to Hawai`i but has the most complex song stylings of any bird I know. I caught this one in the garden the other day. Check him out.
And here’s another audio sample of the shama’s repertoire:
Molokai Birdsong
Molokai Moments 
I could listen to that song on repeat all day long. Wait. I can. All I have to do is open my window;-)
So true, Kim. So lucky we live Hawai`i. And he is singing outside my window right now too.