IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-3. Available at: https://www.iucnredlist.org. (Accessed: 10 December 2019).
Sauer, J.R.; Niven, D.K.; Hines, J.E.; Ziolkowski Jr, D.J.; Pardieck, K.L.; Fallon, J.E.; Link, W.A. 2017. The North American Breeding Bird Survey, Results and Analysis 1966 - 2015. Version 12.23.2015. Laurel, MD
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Recommended citation
BirdLife International (2024) Species factsheet: Mountain Bluebird Sialia currucoides. Downloaded from
https://datazone.birdlife.org/species/factsheet/mountain-bluebird-sialia-currucoides on 18/12/2024.
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 18/12/2024.