• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Bierregaard, R. O., Kirwan, G. M., Christie, D. A., Boesman, P. F. D. 2020. Gray-backed Hawk (Pseudastur occidentalis), version 1.0. Ithaca, NY, USA. Cornell Lab of Ornithology. Available at: https://doi.org/10.2173/bow.gybhaw2.01.

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.

Blandariz, S.R., Macías, A.E.S., Véliz, R.S.S. and Figueroa, F.J.C. 2023. Perception of biodiversity in the Pisloy community, Jipijapa, Manabí, Ecuador. South Florida Journal of Development 4(5): 1906-1927.

Collar, N.J., Gonzaga, L.P., Krabbe, N., Madroño Nieto, A., Naranjo, L.G., Parker, T. A. and Wege, D.C. 1992. Threatened Birds of the Americas: The ICBP/IUCN Red Data Book. International Council for Bird Preservation, Cambridge, U.K.

Coopmans, P., Moore, J.V., Krabbe, N. Jahn, O., Berg, K.S., Lysinger, M., Navarrete, L. and Ridgely, R.S. 2004. The birds of southwest Ecuador. John V. Moore Nature Recordings, San Jose, USA.

del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Dodson, C.H. and Gentry, A.H. 1991. Biological extinction in western Ecuador. Annals of the Missouri Botanical Garden 78: 273-295.

eBird. 2023. eBird: An online database of bird distribution and abundance [web application]. Ithaca, New York. eBird, Cornell Lab of Ornithology. Available at: http://www.ebird.org.

Freile, J.F., Santander G.T., Jiménez-Uzcátegui, G., Carrasco, L., Cisneros-Heredia, D.F., Guevara, E.A., Sánchez-Nivicela, M. and Tinoco, B.A. 2019. Lista roja de las aves del Ecuador. Ministerio del Ambiente, Aves y Conservación, Comité Ecuatoriano de Registros Ornitológicos, Fundación Charles Darwin, Universidad del Azuay, Red Aves Ecuador, Universidad San Francisco de Quito, Quito, Ecuador.

GBIF.org. 2023. GBIF Occurrence Download (10 October 2023): Pseudastur occidentalis. Available at: https://doi.org/10.15468/dl.d9yeng.

Global Forest Watch. 2023. Interactive Forest Change Mapping Tool. Available at: http://www.globalforestwatch.org/.

Hansen, M.C., Potapov, P.V., Moore, R., Hancher, M., Turubanova, S.A., Tyukavina, A., Thau, D., Stehman, S.V., Goetz, S.J., Loveland, T.R., Kommareddy, A., Egorov, A., Chini, L., Justice, C.O. and Townshend, J.R.G. 2013. High-resolution global maps of 21st-century forest cover change. Science 342: 850-853.

IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-2. Available at: https://www.iucnredlist.org. (Accessed: 22 October 2024).

Parker, T.A. and Carr, J.L. 1992. Status of forest remnants in the Cordillera de la Costa and adjacent areas of southwestern Ecuador (Rapid Assessment Program). Conservation International, Washington, D.C.

Piana, R. and Marsden, S. 2012. Diversity, community structure and niche characteristics within a diurnal raptor assemblage of northwestern Peru. The Condor 114(2): 279-289.

Piana, R.P. 2016. Potential distribution, absolute density, and population size of Gray‐backed Hawks (Pseudastur occidentalis) in a protected area in northwest Peru. Journal of Field Ornithology 87(2): 133-142.

SERFOR. 2018. Libro Rojo de la Fauna Silvestre Amenazada del Perú. Primera edición. SERFOR, Lima, Peru.

sRedList. 2023. sRedList Platform - a tool to support Red List assessments (Version 1.2). LifeWatch ERIC. Available at: https://doi.org/10.48372/DSKB-JE13.

Vargas, H. 1995. Food habits, breeding biology and status of the Gray-backed Hawk (Leucopternis occidentalis) in western Ecuador. MSc thesis. Boise State University.

Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note, taxonomic treatment and IUCN Red List category may have changed since publication.

Recuento detallado de la especie tomado del libro Aves Amenazadas de las Americas, Libro Rojo de BirdLife International (BirdLife International 1992). Nota: la taxonomoía y la categoría de la Lista Roja de la UICN pudo haber cambiado desde esta publicación.

Search for photos and videos, and hear sounds of this species from the Macaulay Library

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Recommended citation
BirdLife International (2024) Species factsheet: Grey-backed Hawk Pseudastur occidentalis. Downloaded from https://datazone.birdlife.org/species/factsheet/grey-backed-hawk-pseudastur-occidentalis on 23/11/2024.
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 23/11/2024.