Biology:Turquoise-crowned hummingbird
| Turquoise-crowned hummingbird | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Clade: | Strisores |
| Order: | Apodiformes |
| Family: | Trochilidae |
| Genus: | Cynanthus |
| Species: | C. doubledayi
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| Binomial name | |
| Cynanthus doubledayi (Bourcier, 1847)
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The turquoise-crowned hummingbird or Doubleday's hummingbird (Cynanthus doubledayi) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Mexico.[3][4]
Taxonomy and systematics
The International Ornithological Committee (IOC), the Clements taxonomy, and BirdLife International's Handbook of the Birds of the World consider the turquoise-crowned hummingbird to be a species.[3][5][4] The turquoise-crowned hummingbird is monotypic: no subspecies are recognised.[3]
Description
The Cornell Lab of Ornithology's Birds of the World does not describe the turquoise-crowned hummingbird separately from the broad-billed hummingbird.[6] The following is a Google translation of the original description's French:[7]
"Male adult: straight beak, dilated at its base, white, and black at its extremity; round head; green cap, very brilliante has azure reflections; neck, scapular, back, cover caudal fin glossy dark green; throat, front and sides of the neck, ėpi-gastre covered with shiny bright blue scaly feathers, abdomen less blue and green on the sides; downy anal region White; slightly curved grey-black wings; cordate [notched] tail with wide and rounded rectrices, black-blue, the 4 middle ones ashy at their ends; bare black legs."
The Birds of the World account of the broad-billed hummingbird includes that the male turquoise-crowned hummingbird weighs about 2.4 g (0.085 oz).[6]
Distribution and habitat
The turquoise-crowned hummingbird is found in the southern Mexican states of Guerrero, Oaxaca, and Chiapas.[5] It inhabits a variety of landscapes including arid thorn, tropical deciduous, gallery, and secondary forests. It occasionally occurs in pine-oak woodlands and grassy slopes. In elevation it generally ranges from sea level to 2,200 m (7,200 ft) but occurs as high as 3,000 m (9,800 ft).[6]
Behavior
Movement
The turquoise-crowned hummingbird is a year-round resident throughout its range.[6]
Food and feeding
The diet of the turquoise-crowned hummingbird is not separately described from that of the broad-billed hummingbird. In general, and like most hummingbirds, that species feeds on a wide variety of flowering plants and also small arthropods. The turquoise-crowned hummingbird is described as trap-lining for nectar in gallery forest.[6]
Breeding
The turquoise-crowned hummingbird appears to nest throughout the year; its peak season is unknown. Other information on its breeding phenology is not separated in the Birds of the World account.[6]
Vocalization
The turquoise-crowned hummingbird's vocalizations have not been separately described from those of the broad-billed hummingbird. That species' song, sung only by males, "[b]egins with short chip note, then a series of similar notes ranging in frequency from 2 to 13 kHz."[6]
Status
The IUCN has assessed the turquoise-crowned hummingbird as being of Least Concern. Though its population size is not known it is believed to be stable. No specific threats have been identified.[1] "Resident populations [of broad-billed hummingbird]] in Mexico might...be impacted by habitat loss, but this has not been studied."[6]
References
- ↑ 1.0 1.1 BirdLife International (2021). "Turquoise-crowned Hummingbird Cynanthus doubledayi". IUCN Red List of Threatened Species 2021: e.T22725775A168975499. doi:10.2305/IUCN.UK.2021-3.RLTS.T22725775A168975499.en. https://www.iucnredlist.org/species/22725775/168975499. Retrieved 30 July 2022.
- ↑ "Appendices | CITES". https://cites.org/eng/app/appendices.php.
- ↑ 3.0 3.1 3.2 "Hummingbirds". August 2022. https://www.worldbirdnames.org/new/bow/hummingbirds/.
- ↑ 4.0 4.1 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
- ↑ 5.0 5.1 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
- ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 Powers, D. R. and S. M. Wethington (2021). Turquoise-crowned Hummingbird (Cynanthus doubledayi), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.brbhum2.01 retrieved July 30, 2022
- ↑ Bourcier, Jules (1847). "Troch. Doubledayi". Proceedings of the Zoological Society of London XV: 46. https://www.biodiversitylibrary.org/page/12862830. Retrieved July 30, 2022.
Wikidata ☰ Q2982553 entry
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