Reporte del 1er Conteo Navideño de Aves de Quito, Ecuador

Abstract

The 1st Christmas Bird Count of Quito recorded 131 species of birds, of 34 families and 15 orders, reflecting that Quito has a largest species richness of birds that previously estimated. The most represented families were Thraupidae, Trochilidae, and Tyrannidae, and the most abundant species: Zenaida auriculata Eared Dove, Zonotrichia capensis Rufous-collared Sparrow, Turdus fuscater Great Thrush, Colibri coruscans Sparkling Violet-ear, and Spatula discors Blue-winged Teal. Almost one-third of the species were recorded in periuban and rural zones with large natural vegetation cover, far from the urban centre; and over one-third of the species were rare, apparently having small populations. The routes at Pululahua, Pichincha volcano, the valley of Guayllabamba, between the Zoo of Quito and the new airport, and the Parque Arqueológico Rumipamba (incl. the Rumiloma ravine) had the largest species richness and the largest amount of unique species. Thirteen boreal migratory species of birds were recorded; including the rare Progne subis Purple Martin and the first individual of Larus smithsonianus American Herring Gull for Ecuador. Twentyone taxa of birds observed at the count are almost endemic to the Andes of Ecuador. The Christmas Bird Count of Quito is a citizen science activity that can generate long-term information on the diversity and population evology of the birds, allowing the development of conservation estrategies for the birds and wildlife of Quito.

Rare Birds in Ecuador: Third Report of the Committee for Ecuadorian Records in Ornithology (Cero)

“…There is a single previous record of an adult-plumaged individual seen at the Napo River upstream of La Selva lodge on 13 February 1991 (Ridgely & Greenfield, 2001). A photograph of apparently the same individual, taken by J. M. Carrión at Cumbayá reservoir, was published by Cisneros-Heredia et al (2015). These observations in the Quito area represent the first documented records for Ecuador.…”

El Parque Universitario Francisco Vivar Castro: Un refugio clave para las aves de la Hoya de Loja, Ecuador.

“…Escobar-Ibáñez y MacGregor-Fors (2017) plantean que la información sobre la avifauna asociada a entornos urbanos y periurbanos en la región neotropical y particularmente en los Andes es aún escasa. En Ecuador son pocos los trabajos publicados formalmente en revistas científicas sobre el tema de aves urbanas o sus entornos inmediatos, entre estos se pueden mencionar algunos efectuados en la ciudad de Quito (Cisneros-Heredia et al, 2015), Guayaquil (Rojas-Allieri y Man-Ging, 2015; Zambrano et al, 2020), Sangolquí (Jácome-Negrete et al, 2019) y Galápagos (Harvey et al, 2021.…”

Notas Sobre La Dieta, Desarrollo De Jóvenes Y Distribución Del Búho Estigio Asio Stygius (Strigoformes: Strigidae) en Ecuador

“…En base a nuestros resultados consideramos que Asio stygius-al menos en la provincia de Pichincha, actúa como un depredador especialista en aves y con táctica de caza oportunista. Especialista (de estrecho nicho trófico, Jaksic, 1989) porque apenas registramos el consumo de 9 ítems y oportunista (que ingiere las presas en las mismas abundancias relativas de su medio, Jaksic, 1989) porque la mayor frecuencia de presas encontradas en las egagrópilas 73,9%, corresponde con una de las aves más abundantes en Quito: Zenaida auriculata (Cisneros-Heredia et al, 2015). Lo antagónico sería generalista, de amplio nicho trófico, y selectivo, que lleva a algunas o todas las presas en diferentes proporciones a las presentes en el área de caza (Jaksic, 1989).…”