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

Behrstock, R. A.; Sexton, C. W.; Lasley, G. W.; Eubanks, T. L.; Gee, J. P. 1997. First nesting records of Worthen's Sparrow Spizella wortheni for Nuevo León, Mexico, with a habitat characterisation of the nest site and notes on ecology, voice, additional recent sightings and leg coloration. Cotinga: 27-33.

Canales-del Castillo, R., González-Rojas, J.I., Ruvalcaba-Ortega, I., García-Ramírez, A. 2010. New breeding localities of Worthen's sparrows in northeastern Mexico. Journal of Field Ornithology 81(1): 5-12.

Canales-Delgadillo, J. C.;Chapa-Vargas, L.; Carlos Gómez, J. A.; Arreola Aguirre, J. 2015. New distributional records for the endangered Worthen’s Sparrow Spizella wortheni in San Luis Potosi, Mexico. Acta Zoológica Mexicana (n.s.) 31: 313-317.

Canales-Delgadillo. J. C. 2011. Population structure and genetic diversity of Worthen’s Sparrow (Spizella wortheni) in Northeastern Mexico. Doctorate Dissertation. Universität Osnabrück.

Garza de León, A.; Rosales, I. M.; Cancino de La Fuente, F.; Hernández, R. T.; López de Aquino, S. 2007. Parametros reproductivos y nueva localidad de anidación para el Gorrión de Worthen (Spizella wortheni) en el estado de Coahuila, Mexico. Ornitologia Neotropical 18(2): 243-249.

Ruvalcaba Ortega, I.; Canales del Castillo, R.; González Rojas, J. I.; Flores Maldonado, J. J.; Elizondo Alejo, H. E.; Ramos-Silva, C. B. 2016. Diagnóstico de la calidad del hábitat y de las amenazas que afecta las épocas reproductivas y post-reproductivas de las poblaciones de gorrión de Worthen. Reporte Final. CONANP/PROCER.

Ruvalcaba Ortega, I.; Canales del Castillo, R.; González Rojas, J. I.; Flores Maldonado, J. J.;Elizondo Alejo, H. E. 2015. Diagnóstico poblacional del gorrión de Worthen y prospección de su hábitat. Reporte Final. CONANP/PROCER.

Scott-Morales, L.; Nocedal, J.; Cotera, M.; Canales-Delgadillo., J. 2008. Worthen’s Sparrow (Spizella wortheni) in the northern Mexican Plateau. Southwestern Naturalist 53: 91-95.

Wege, D. C.; Howell, S. N. G.; Sada, A. M. 1993. The distribution and status of Worthen's Sparrow Spizella wortheni: a review. Bird Conservation International 3: 211-220.

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Recommended citation
BirdLife International (2024) Species factsheet: Worthen's Sparrow Spizella wortheni. Downloaded from https://datazone.birdlife.org/species/factsheet/worthens-sparrow-spizella-wortheni on 22/11/2024.
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 22/11/2024.