Sorry to respond to my own post, but I'm confused about something.

How can Eastern and Western Nashville Warblers be the same species if
a)they are morphologically distinct to some degree, and
b)their breeding ranges are separated by hundreds of miles?

Does anyone know of any studies done recently on this species?

Nick Pharris
Pacific Lutheran University
Tacoma, WA 98447
(253)535-7045
pharrinj at plu.edu