del Hoyo, J.; Elliott, A.; Sargatal, J. 1999. Handbook of the Birds of the World, vol. 5: Barn-owls to Hummingbirds. Lynx Edicions, Barcelona, Spain.
Schuchmann, K. L. 1999. Trochilidae (Hummingbirds). In: del Hoyo, J.; Elliott, A.; Sargatal, J. (ed.), Handbook of the birds of the world, pp. 468-680. Lynx Edicions, Barcelona, Spain.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.
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Recommended citation
BirdLife International (2023) Species factsheet: Aglaiocercus kingii. Downloaded from
http://datazone.birdlife.org/species/factsheet/long-tailed-sylph-aglaiocercus-kingii on 28/05/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 28/05/2023.