Tumbes hummingbird

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Tumbes hummingbird
CITES Appendix II (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Apodiformes
Family: Trochilidae
Genus: Thaumasius
Species:
T. baeri
Binomial name
Thaumasius baeri
(Simon, 1901)
Synonyms

Leucippus baeri[3]

The Tumbes hummingbird (Thaumasius baeri) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Ecuador and Peru.[4][3]

Taxonomy and systematics

This species was formerly placed in the genus Leucippus. A molecular phylogenetic study published in 2014 found that Leucippus was polyphyletic.[5] To resolve the polyphyly the Tumbes hummingbird and the spot-throated hummingbird (Taphrospilus hypostictus) were moved by most taxonomic systems to the resurrected genus Thaumasius. However, BirdLife International's Handbook of the Birds of the World retains it in Leucippus.[6][4][7][8][3]

The Tumbes hummingbird is monotypic.[4]

Description

The Tumbes hummingbird is 8 to 11 cm (3.1 to 4.3 in) long and weighs about 4.5 g (0.16 oz). The sexes are essentially alike. They have a nearly straight black bill. Their upperparts are pale golden green and their underparts pale grayish that becomes white on the belly. The tail feathers are pale green; the inner ones have bronzy tips and the outer ones a dusky gray band near the end and tips that are whitish in the male and grayish in the female.[9]

Distribution and habitat

The Tumbes hummingbird is found in southwestern Ecuador's El Oro and Loja provinces and into northwestern Peru as far south as Lambayeque Department. It inhabits arid scrublands and the edges of deciduous forest in the Tumbes ecoregion. In elevation it ranges from sea level to 1,000 m (3,300 ft) in Ecuador and 1,275 m (4,200 ft) in Peru.[9]

Behavior

Movement

The Tumbes hummingbird is mostly sedentary though it may make some seasonal movements.[9]

Feeding

The Tumbes hummingbird forages for nectar from the understory to the mid-strata, though details of the flowering plants it favors are lacking. In addition to nectar, it feeds on small arthropods.[9]

Breeding

The Tumbes hummingbird's breeding phenology and nest have not been described.[9]

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to Tumbes hummingbird on xeno-canto

Vocalization

The Tumbes hummingbird's song is "a complex series of chips and wheezing electric warbles." Its calls have been described as "a gruff dzee and chips."[9]

Status

The IUCN has assessed the Tumbes hummingbird as being of Least Concern, though it has a limited range and its population size and trend are unknown. No immediate threats have been identified.[1] However, because of its restricted range, "it remains potentially vulnerable to any increase in habitat loss, degradation, or fragmentation."[9]

References

  1. ^ a b BirdLife International (2016). "Tumbes Hummingbird Leucippus baeri". IUCN Red List of Threatened Species. 2016. Retrieved 3 September 2022.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ a b c HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022
  4. ^ a b c Gill, F.; Donsker, D.; Rasmussen, P., eds. (August 2022). "Hummingbirds". IOC World Bird List. v 12.2. Retrieved August 9, 2022.
  5. ^ McGuire, J.; Witt, C.; Remsen, J.V.; Corl, A.; Rabosky, D.; Altshuler, D.; Dudley, R. (2014). "Molecular phylogenetics and the diversification of hummingbirds". Current Biology. 24 (8): 910–916. Bibcode:2014CBio...24..910M. doi:10.1016/j.cub.2014.03.016. PMID 24704078.
  6. ^ Stiles, F.G.; Remsen, J.V. Jr.; Mcguire, J.A. (2017). "The generic classification of the Trochilini (Aves: Trochilidae): reconciling taxonomy with phylogeny". Zootaxa. 4353 (3): 401–424. doi:10.11646/zootaxa.4353.3. PMID 29245495.
  7. ^ Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021
  8. ^ Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 24, 2022
  9. ^ a b c d e f g Schulenberg, T. S. and C. W. Sedgwick (2021). Tumbes Hummingbird (Thaumasius baeri), version 1.1. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.tumhum1.01.1 retrieved September 3, 2022
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