Geographic Variation in the Song of Willow Flycatchers: Differentiation Between Empidonax Traillii Adastus and E T Extimus

Authors

James A. Sedgwick

Creative Commons License

Terms of use for work posted in Scholar Commons.

Recommended Citation

Sedgwick, James A. (2001) "Geographic Variation in the Song of Willow Flycatchers: Differentiation Between Empidonax Traillii Adastus and E T Extimus," The Auk: Vol. 118: Iss. 2, Article 8.
Available at: https://digitalcommons.usf.edu/auk/vol118/iss2/8