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| Giant hummingbird | |
|---|---|
| Name | Giant hummingbird |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Patagona |
| Species | gigas |
| Authority | (Gould, 1846) |
Giant hummingbird is the largest member of the family Trochilidae, notable for its exceptional size among hummingbirds and foraging specialization at high elevations in the Andes. It inhabits montane and arid zones across western South America and is recognized in natural history and ornithological studies for its physiology, flight mechanics, and ecological role. The species has been the subject of research by institutions and field biologists concerned with Andean biodiversity and pollination networks.
The species was described by John Gould in 1846 and placed in the monotypic genus Patagona. Taxonomic treatments have appeared in works by Charles Darwin-era contemporaries and later compilations such as those produced by the American Ornithological Society and the International Ornithologists' Union. Molecular phylogenies published in journals affiliated with institutions like the Smithsonian Institution and University of Oxford clarified relationships within Trochilidae, contrasting the species with genera treated by researchers at the Natural History Museum, London and the Museo de Historia Natural de Lima. Conservation assessments by the IUCN and checklists from the BirdLife International partnership reflect consensus on species limits, while regional field guides produced by the Peruvian Institute of Natural Resources and the Chilean Birdlife Society discuss subspecific variation across national boundaries.
Adults measure roughly 20–23 cm in length with a wingspan enabling sustained hovering and slow flapping; plumage is largely brownish-gray with iridescent undertones noted in museum collections at the American Museum of Natural History and the Natural History Museum, London. Morphological descriptions published by researchers at the Royal Society and universities such as the University of Cambridge emphasize the species' long decurved bill and robust body compared with members documented by fieldworkers from organizations like Conservation International and WWF. Flight-muscle physiology has been analyzed in studies associated with the Max Planck Society and the University of California, informing comparisons with hummingbirds illustrated in plates by the Linnean Society of London.
The species occupies an Andean range extending from Venezuela-adjacent highlands through Colombia, Ecuador, Peru, Bolivia to central Chile and Argentina. Elevational limits reported in regional surveys conducted by the Peruvian Ministry of Environment and the Bolivian Biodiversity Institute span puna, paramo, and dry inter-Andean valleys; it also frequents altiplano sites monitored by the International Centre for Integrated Mountain Development and protected areas such as Huascarán National Park and Torres del Paine National Park. Habitat descriptions in field manuals from the Cornell Lab of Ornithology and the Royal Ontario Museum note preference for shrublands, Polylepis woodlands, and human-altered landscapes where nectar sources are available.
Observational studies by researchers affiliated with the Natural History Museum of Los Angeles County and the Pontifical Catholic University of Peru document territoriality, display behaviors, and flight kinematics. The species exhibits seasonal altitudinal movements recorded by teams from the Smithsonian Tropical Research Institute and the University of Chile, with local dispersal linked to flowering phenology tracked by botanical collaborations from institutions such as the Missouri Botanical Garden and the Royal Botanic Gardens, Kew. Predator interactions and nest predation have been reported in regional reports by the Peruvian Ornithological Society and the Argentine Ornithological Association.
Primary diet consists of nectar from large tubular flowers of genera studied by botanists at the Royal Botanic Gardens, Kew and the Missouri Botanical Garden, including species pollinated in cooperation with researchers from the Pontificia Universidad Católica de Chile and the Universidad San Francisco de Quito. The bird supplements nectar intake with arthropods captured by hawking and gleaning, as documented in ecological papers from the University of California, Davis and the University of British Columbia. Pollination interactions have been the subject of studies published with collaborators from the Wildlife Conservation Society and the International Union for Conservation of Nature pollination initiatives.
Breeding biology has been summarized in field guides produced by the Cornell Lab of Ornithology and regional monographs compiled by the Peruvian Ornithological Society. Nests are cup-shaped and constructed with plant fibers and spider silk, observations made by naturalists associated with the Museo de la Plata and the National University of San Marcos. Clutch size, incubation, and fledging periods align with hummingbird norms reported in textbooks from the University of Oxford and breeding seasonality corresponds to flowering cycles monitored by the Missouri Botanical Garden and the Royal Botanic Gardens, Kew in Andean ecosystems.
The IUCN currently lists the species as Least Concern, based on assessments coordinated with BirdLife International and national agencies like the Peruvian Ministry of Environment and the Chilean National Forest Corporation. Threats include habitat modification documented by reports from Conservation International and climate-driven alterations in elevational plant communities studied by the Intergovernmental Panel on Climate Change and researchers at the University of Bern. Conservation actions recommended in management plans developed with stakeholders such as the World Wildlife Fund and local governments target habitat protection in reserves like Huascarán National Park and community-based initiatives supported by the United Nations Development Programme.
Category:Trochilidae Category:Birds of the Andes