Black-backed thornbill
Black-backed thornbill | |
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male | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Clade: | Strisores |
Order: | Apodiformes |
Family: | Trochilidae |
Genus: | Ramphomicron |
Species: | R. dorsale
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Binomial name | |
Ramphomicron dorsale | |
The black-backed thornbill (Ramphomicron dorsale) is an
Taxonomy and systematics
The black-backed thornbill is
Description
The black-backed thornbill is 9 to 10 cm (3.5 to 3.9 in) long and weighs about 3.5 g (0.12 oz). Both sexes have a very short black bill; the male's is slightly decurved. The male's upperparts are velvety black with purplish uppertail coverts and a white spot behind the eye. Their gorget is olive green and the rest of the underparts are a mix of dark gray and rufous with green dots. The tail is moderately long, deeply forked, and purplish black. Females have shining grass green upperparts, and like the male, purplish uppertail coverts and a white spot behind the eye. Their underparts are buffy white with green dots. The tail is shorter than the male's and the outer pair of feathers have white tips.[5]
Distribution and habitat
The black-backed thornbill is restricted to the isolated Sierra Nevada de Santa Marta in far northern Colombia, where it inhabits the edges of humid and
Behavior
Movement
The black-backed thornbill moves to lower elevations in May and Jun.[5]
Feeding
The black-backed thornbill forages for nectar at any height from the ground to the canopy. It has been recorded taking nectar from the flowers of
Breeding
Nothing is known about the black-backed thornbill's breeding phenology.[5]
Vocalization
The black-backed thornbill's calls include "a short dry rattle 'trrr'...a long descending rattle...'tsee-tttrrrrrrrr-tsee', [and] single 'tsee' notes."[5]
Status
The
References
- ^ . Retrieved 23 February 2022.
- ^ "Appendices | CITES". cites.org. Retrieved 14 January 2022.
- ^ a b Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2022). "Hummingbirds". IOC World Bird List. v 12.1. Retrieved 15 January 2022.
- ^ HBW and BirdLife International (2020) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip [.xls zipped 1 MB] retrieved 27 May 2021
- ^ a b c d e f g Züchner, T. and P. F. D. Boesman (2020). Black-backed Thornbill (Ramphomicron dorsale), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.blbtho1.01 retrieved 23 February 2022