First description of the nest and juveniles of the Coppery Metaltail (Metallura theresiae), with comments on hummingbird nestling obesity

González, Óscar

doi:10.1676/1559-4491-132.4.984

Cited by 2 publications

(2 citation statements)

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“…Open cup nests have also been described for Tyrian Metaltail M. tyrianthina (Londoño et al, 2014, Matta-Pereira et al, 2019, Greeney & Juiña, 2020, Soto-Patiño, 2021 and Black Metaltail M. phoebe (Mamani-Cabana, 2020). We could not find previous information about nest dimension for M. baroni, but our measurements were similar to those reported for a M. tyrianthina nest in Colombia (Soto-Patiño, 2021), a M. phoebe nest in Peru (Mamani-Cabana, 2020), and a Coppery Metaltail M. theresiae nest in Peru (González, 2020).…”

Section: Discussionsupporting

confidence: 63%

“…The nesting materials found were similar to those used in nests of other Metallura species: mosses, twigs, roots, mammal fur, and spiderweb are all materials found in the external chamber of Neblina Metaltail M. odomae (Schuchmann, 1999), M. phoebe (Mamani-Cabana, 2020) and M. tyrianthina (Matta-Pereira, 2019;Greeney & Juiña, 2020, Soto-Patiño, 2021. Feathers are also reported in the inner chamber of M. phoebe (Mamani-Cabana 2020), M. odomae (Schuchmman, 1999), M. theresiae (González, 2020), and other high elevation hummingbirds, including Andean Hillstar Oreotrochilus estella (Carpenter, 1976) and Blue-throated Hillstar O. cyanolaemus (Molina et al, 2021). Feathers as nesting material are likely being selected for birds in cold, high elevation environments due to their high insulation properties (Schöl & Hille, 2014).…”

Section: Discussionmentioning

confidence: 99%

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NESTING BIOLOGY OF AN ECUADORIAN ENDEMIC HUMMINGBIRD, THE ENDANGERED VIOLET-THROATED METALTAIL Metallura baroni

Ugalde¹,

Molina²,

Pacheco³

et al. 2022

Rev. Ecuatoriana Orn.

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Violet-throated Metaltail Metallura baroni is a threatened hummingbird species, endemic to the Andes of southern Ecuador. Details about the reproductive biology of this species are largely unknown. In this manuscript, we describe the nest, eggs, and nestlings"™ development based on nine nests found along with the Cuenca-Molleturo-Naranjal road, in Cajas National Park, in 2019. We document a breeding period from March to May, which corresponds to the rainy season. All nests were found in roadside embankments, and were constructed with mosses, small twigs, rootlets, Polylepis sp. (Rosaceae) bark, and Puya sp. (Bromeliaceae) fibers. In all nests, we found two white oval eggs that were exclusively attended by a female across the breeding period. Hatching to fledging period lasted 28-32 days. Nesting at roadsides can be particularly risky due to a high probability of collision with vehicles; thus, an assessment of the breeding success of M. baroni on nests located at roadsides is a research priority for this species. The information provided here increases the knowledge about the natural history of M. baroni.

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Section: Discussionsupporting

confidence: 63%