Range data provided by Infonatura/Natureserve and BirdPhotos.com.
Ridgely, R. S., T. F. Allnutt, T. Brooks, D. K. McNicol, D. W. Mehlman, B. E. Young, and J. R. Zook. 2005. Digital Distribution Maps of the Birds of the Western Hemisphere, version 2.1. NatureServe, Arlington, Virginia, USA. Additional updates and changes by BirdPhotos.com 2016.
Sweden,Czech Republic,Latvia,Serbia,Belarus,Netherlands,Ukraine,Romania,North Korea,Mongolia,Hungary,China,Estonia,Poland,Spain,Switzerland,Lithuania,Norway,Canada,Luxembourg,Kyrgyzstan,Russia,Finland,Austria,Kazakhstan,Denmark,United States - Alaska,United States - mainland,