References
Dunn, E. H., D. J. T. Hussell, J. Kren, and A. C. Zoerb (2020). Northern Wheatear (
Oenanthe oenanthe), version 2.0. In Birds of the World (P. G. Rodewald, B. K. Keeney, and S. M. Billerman, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA.
https://doi-org.arlis.idm.oclc.org/10.2173/bow.norwhe.02
Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, O. Robinson, S. Ligocki, W. Hochachka, C. Wood, I. Davies, M. Iliff, L. Seitz. 2020. eBird Status and Trends, Data Version: 2019; Released: 2020. Cornell Lab of Ornithology, Ithaca, New York.
https://doi.org/10.2173/ebirdst.2019