The sound birds make when they are relaxed/tired and they don't do a full, sharp CHIRP. Very quiet/soft sounding and makes your heart melt just a little.
1: Hey, how are your birds doing?
2: Oh, they're doing their little churbles.
1: Aw, that's so cute!
2: Oh, they're doing their little churbles.
1: Aw, that's so cute!
by yammoyam January 19, 2018
by Noichberg December 25, 2006
by AMBaltay February 26, 2008