El Violetear centelleante (Colibri coruscans) es un colibrí grande y agresivo que suele dominar comederos o parches de flores. Su color general es verde chispeante con manchas azul violáceo en las mejillas y el vientre. Los sexos son iguales. Más grande que el Violetear Menor, y esa especie carece del vientre púrpura. Común y extendido en los Andes. Utiliza hábitats abiertos, incluyendo los bordes de los bosques, tierras agrícolas arbustivas y pueblos y ciudades. Se encuentra desde los 400-4.500 m; es más común desde la zona subtropical hasta los matorrales de gran altitud y los valles secos, pero también vaga a baja altitud en las estribaciones.
Hábitats y distribución
Sparkling Violetear inhabits a range of environments from subtropical or tropical moist montane forests to more open woodland, scrub areas, and even gardens and urban regions. It thrives at elevations between 1,000 and 3,200 meters but can be found at sea level in some areas.
Geographically, the Sparkling Violetear is widely distributed across the Andean regions of South America, including countries such as Colombia, Ecuador, Peru, Bolivia, and northern Argentina. It also ranges into western Venezuela and through to some areas in Brazil, making it one of the more adaptable hummingbird species. This bird often displays a preference for the varied foliage and plentiful flower resources found in these highland ecosystems.
Comportamiento y reproducción
Sparkling Violetears are known for their territorial and solitary behavior, with males being particularly aggressive in defending their feeding areas from both conspecifics and other hummingbird species. During the breeding season, males perform elaborate aerial displays to attract females, showcasing their iridescent plumage and producing sharp, metallic sounds with their wings. Once a male successfully attracts a female, the relationship is short-lived, as the male does not partake in nest building or caring for the young.
Females are solely responsible for constructing the nest, which is often situated on tree branches and composed of plant fibers, spider webs, and other soft materials to provide a secure environment for the eggs. Typically, two white eggs are laid, and the female incubates them for about 15-17 days until they hatch. After hatching, the mother diligently feeds the chicks with regurgitated food until they fledge approximately 23-26 days later. This solitary and self-reliant strategy ensures that both parents maximize their reproductive success by investing energy in different aspects of survival and reproduction.
Dieta
Néctar e insectos.
Colores
Verde con manchas violetas en las orejas.
Datos curiosos
Puede planear en el aire batiendo rápidamente las alas. Se encuentra en los Andes; reconocible por su plumaje azul y verde iridiscente. Escuche su incesante canto, una serie interminable de notas de chip metálico.
Estado y esfuerzos de conservación
The Sparkling Violetear (Colibri coruscans) is currently listed as Least Concern on the IUCN Red List due to its widespread range and stable population trends. It inhabits various regions across South America, including forest edges, open woodlands, and human-altered environments such as gardens and plantations. Despite its stable population, localized threats such as habitat degradation and deforestation could potentially impact specific populations.
Conservation efforts for the Sparkling Violetear primarily focus on habitat protection and the promotion of sustainable land-use practices. Additionally, several protected areas and national parks within its range contribute to safeguarding vital habitats. Conservationists also encourage planting native flora in gardens and urban spaces to support local hummingbird populations. Ongoing monitoring and research are essential to detect any future changes in population dynamics and to implement timely conservation strategies if needed.
