Data Zone
Bird, J.P., Martin, R., Akçakaya, H.R., Gilroy, J., Burfield, I.J., Garnett, S.G., Symes, A., Taylor, J., Şekercioğlu, Ç.H. and Butchart, S.H.M. 2020. Generation lengths of the world’s birds and their implications for extinction risk. Conservation Biology 34(5): 1252-1261. DOI: 10.1111/cobi.13486.
IUCN. 2021. The IUCN Red List of Threatened Species. Version 2021-3. Available at: https://www.iucnredlist.org. (Accessed: 09 December 2021).
Partners in Flight. 2019. Avian Conservation Assessment Database, version 2019. Available at: http://pif.birdconservancy.org/ACAD.
Partners in Flight. 2020. Avian Conservation Assessment Database, version 2020. Available at: http://pif.birdconservancy.org/ACAD.
Rosenberg, K. V.; Dokter, A. M.; Blancher, P. J.; Sauer, J. R.; Smith, A. C.; Smith, P. A.; Stanton, J. C.; Panjabi, A.; Helft, L.; Parr, M.; Marra, P. P. 2019. Decline of the North American avifauna. Science 366(6461): 120-124.
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Recommended citation
BirdLife International (2024) Species factsheet: Willow Flycatcher Empidonax traillii. Downloaded from
https://datazone.birdlife.org/species/factsheet/willow-flycatcher-empidonax-traillii on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/12/2024.