The western form, Troglodytes troglodytes pacificus. Click here to listen. (To download, control-click the above)
		The eastern form, Troglodytes troglodytes hiemalis. Click here to listen. (To download, control-click the above)
Photos © 2006 D. Irwin

We can use your help: If you live in northeastern BC or western Alberta and notice a singing winter wren, we would appreciate it if you could identify whether it is singing a western or eastern song and let us know the location of the bird. Please let us know by sending an email to Darren Irwin. Even better, a recording of the bird could be very useful. Your observations could allow us to make a much more comprehensive map of the contact zone between western and eastern forms.

Listen to CBC Radio interviews:

• Interview with Mark Forsythe on CBC Radio's "BC Almanac". To listen, click here. (Nov. 13, 2006)
• Interview with James Evans on CBC Radio's "Daybreak North". To listen, click here. (Nov. 14, 2006)

Newspaper articles:

• The Province (Nov. 12, 2006)
• UBC Reports (Nov. 2, 2006)
• Tumbler Ridge News (June 14, 2006)

Scientific journal articles:

• Toews, D.P.L., and D.E. Irwin. 2008. Cryptic speciation in a Holarctic passerine revealed by genetic and bioacoustic analyses. Molecular Ecology 17: 2691-2705. Link

Back to Darren Irwin's main page.

Click here to go to David Toews's page.