“Really, it’s a matter of ethics and attitude,” said Mary E. Kelly, a principal at the Austin environmental analysis firm Parula.
New York Times(Aug 25, 2013)
Call, a warbler lisp and tchip of the Myrtle Warbler; song resembling that of Parula Warbler.
Chapman, Frank M., Color Key to North American Birds—w...(2011)
And, to the Parula warblers: "Go home, little friends of God!"
Chambers, Robert W. (Robert William), The Slayer Of souls(2011)