∙ Several species of raptors that breed in North America migrate to the southern hemisphere during the non-breeding period. The Broad-winged Hawk (Buteo platypterus) is one of them, and its wintering distribution reaches the north and central part of South America, although there are published records for the species in Argentina and southern Brazil. We did an exhaustive search of records of the Broad-winged Hawk for South America, using bibliography, citizen-science initiatives, personal communications, and own records. We obtained 4025 georeferenced records for the 1879–2017 period. Both the numbers of records per year and the geographical range of the species have apparently increased in recent years. We also obtained the first record for Misiones province in Argentina and for Espírito Santo state, in Brazil. The wintering range of this species is estimated to cover 12.5 million km2 of the north central part of South America, including southern Brazil and northern Argentina. While it is possible that the range has expanded 700 km southwards recently, with the data available it is not possible to disentangle this possibility from changes in the distribution of bird observers. Resumen ∙ Determinando el rango invernal del Aguilucho Alas Anchas (Buteo platypterus) en Sudamérica involucrando datos de ciencia ciudadana Varias especies de aves rapaces se reproducen en América del Norte y migran durante los meses de invierno al hemisferio sur. Uno de ellos, el Aguilucho Alas Anchas (Buteo platypterus), alcanza normalmente el norte y centro de Sudamérica, aunque se han publicado registros en Argentina y en el sur de Brasil. Realizamos una búsqueda exhaustiva de registros del Aguilucho Alas Anchas para Sudamérica, en la literatura científica, en proyectos de ciencia ciudadana, comunicaciones personales y registros propios, obteniendo un total de 4025 registros georreferenciados para el período 1879–2017. Tanto el número de registros por año como el rango geográfico de la especie han aumentado en los últimos años. También reportamos el primer registro para la provincia de Misiones en Argentina y para el estado de Espírito Santo en Brasil. La zona de invernada actual de esta especie cubriría aproximadamente 12,5 millones de km2 de la porción central-norte de Sudamérica, incluyendo el sur de Brasil y el norte de Argentina. Si bien es posible que la especie se haya expandido unos 700 km hacia el sur en tiempos recientes, no es posible diferenciar esta posibilidad de cambios en la distribución de observadores de aves.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.