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− | [[Image:Black-throated Trogon male . | + | [[Image:Northen Black-throated Trogon male by MIKADO.jpeg|thumb|450px|right|Male, Subspecies ''tenellus''<br />Photo by {{user|MIKADO|MIKADO}} <br />[[Costa Rica]], 10 February 2022]] |
;[[Category:Trogon]] [[:Category:Trogon|Trogon]] tenellus | ;[[Category:Trogon]] [[:Category:Trogon|Trogon]] tenellus | ||
==Identification== | ==Identification== | ||
− | [[Image: | + | [[Image:Northern Black-throated Trogon female by costaricanbirdwatcher.jpg|thumb|300px|right|Female<br />Photo by {{user|costaricanbirdwatcher|costaricanbirdwatcher}}<br />Carara National Park, [[Costa Rica]], 27 November 2008]] |
− | 23.5–26 cm<br /> | + | 23.5–26 cm (9-9¾ in)<br /> |
'''Male''' | '''Male''' | ||
− | * | + | *Head, and mantle coppery green |
− | *Throat and face black | + | **Throat and face black |
− | * | + | *Rump plain green |
− | * | + | *Uppertail blue to green, with narrow black terminal band; no subterminal band |
− | *Belly yellow | + | *Breast golden-green |
− | *Undertail | + | *Belly yellow |
− | + | **White band separating yellow belly from breast is complete in most, with some showing incomplete and few showing absence | |
− | *Wing [[Topography#General Anatomy|coverts]] | + | *Undertail barred black and white, 4-5 bars per cm |
+ | *Wing [[Topography#General Anatomy|coverts]] black and white with about 10-11 bars per cm | ||
+ | *Bill yellow (photos indicate darker central underside of lower mandible) | ||
+ | *Eye-ring pale blue to greyish, more prominent in front of and behind the eye | ||
''' Female''' | ''' Female''' | ||
− | * | + | *Head, upper breast and back brown with yellowish tones |
− | *Rufous | + | *Uppertail Rufous-brown |
*Yellow belly | *Yellow belly | ||
− | * | + | *Undertail barred black and white with 3-5 bars per cm; black bars usually narrower than white |
− | * | + | **Undertail in most birds infused with brown basally, a few along edges, some without |
+ | *Bill variable from mostly yellow to mostly black or dusky | ||
+ | *Eye-ring blue-grey or blue, wider behind and in front of the eye | ||
+ | '''Juvenile''' similar to female but duller, with usually dark bill. Males in their next plumage can look like a dull version of a male or can have brown feathers intermixed with feathers carrying male colors. | ||
====Similar species==== | ====Similar species==== | ||
− | Similar species with overlapping range differ in having full black hood in the male ([[Black-headed Trogon]]) or by having yellow eye-rings ([[Gartered Trogon]]). | + | [[Image:Black-throated Trogon male .jpg|thumb|350px|right|Male, immature<br />Photo by {{user|Stanley+Jones|Stanley Jones}} <br />Bosque del Río Tigre Lodge, Osa Peninsula, Puntarenas Province, [[Costa Rica]], February 2015]] |
+ | Similar species with overlapping range differ in having full black hood in the male ([[Black-headed Trogon]]) or by having yellow eye-rings ([[Gartered Trogon]]). [[Choco Black-throated Trogon]] differs from [[Northern Black-throated Trogon]] in having on average slightly blacker tail undersides, yellow eye-ring, and different voice (usually longer series of notes given at a slightly slower pace and with a slightly lower pitch). | ||
==Distribution== | ==Distribution== | ||
+ | [[Image:Northern Black-throated Trogon male Pipeline Road by Stanley Jones.jpg|thumb|350px|right|Male, seemingly completely lacking the white between breast and belly<br />Photo by {{user|Stanley+Jones|Stanley Jones}} <br />Pipeline Road, northwest of Gamboa, Colon Province, [[Panama]], 10 February 2018]] | ||
Tropical south-eastern [[Honduras]] to extreme north-western [[Colombia]] | Tropical south-eastern [[Honduras]] to extreme north-western [[Colombia]] | ||
==Taxonomy== | ==Taxonomy== | ||
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==Habitat== | ==Habitat== | ||
+ | Mostly humid forest and older second growth, but can occasionally be found in dry forest in [[Costa Rica]]. Mostly in lowland, but in specific areas found up to 1200-1300 m [[Dictionary_A-C#A|asl]]. | ||
==Behaviour== | ==Behaviour== | ||
+ | Food consists of fruit and insects, with insects more important than in most trogon species. These are captured with the bird sallying out from a perch. Usually the bird is found in the low to middle levels of the forest. | ||
====Vocalisation==== | ====Vocalisation==== | ||
+ | Notes with a whistled quality are given in series of 2 - 6 (average 3). Around two notes are given per second. | ||
==References== | ==References== | ||
#{{Ref-Clements6thOct23}}#{{Ref-GillDonskerRasmussen22V13.2}}#van Dort, J. and P. Pyle (2023). Northern Black-throated Trogon (Trogon tenellus), version 1.0. In Birds of the World (T. S. Schulenberg and M. A. Bridwell, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bkttro7.01 | #{{Ref-Clements6thOct23}}#{{Ref-GillDonskerRasmussen22V13.2}}#van Dort, J. and P. Pyle (2023). Northern Black-throated Trogon (Trogon tenellus), version 1.0. In Birds of the World (T. S. Schulenberg and M. A. Bridwell, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bkttro7.01 |
Latest revision as of 14:24, 26 May 2024
- Trogon tenellus
Identification
23.5–26 cm (9-9¾ in)
Male
- Head, and mantle coppery green
- Throat and face black
- Rump plain green
- Uppertail blue to green, with narrow black terminal band; no subterminal band
- Breast golden-green
- Belly yellow
- White band separating yellow belly from breast is complete in most, with some showing incomplete and few showing absence
- Undertail barred black and white, 4-5 bars per cm
- Wing coverts black and white with about 10-11 bars per cm
- Bill yellow (photos indicate darker central underside of lower mandible)
- Eye-ring pale blue to greyish, more prominent in front of and behind the eye
Female
- Head, upper breast and back brown with yellowish tones
- Uppertail Rufous-brown
- Yellow belly
- Undertail barred black and white with 3-5 bars per cm; black bars usually narrower than white
- Undertail in most birds infused with brown basally, a few along edges, some without
- Bill variable from mostly yellow to mostly black or dusky
- Eye-ring blue-grey or blue, wider behind and in front of the eye
Juvenile similar to female but duller, with usually dark bill. Males in their next plumage can look like a dull version of a male or can have brown feathers intermixed with feathers carrying male colors.
Similar species
Similar species with overlapping range differ in having full black hood in the male (Black-headed Trogon) or by having yellow eye-rings (Gartered Trogon). Choco Black-throated Trogon differs from Northern Black-throated Trogon in having on average slightly blacker tail undersides, yellow eye-ring, and different voice (usually longer series of notes given at a slightly slower pace and with a slightly lower pitch).
Distribution
Tropical south-eastern Honduras to extreme north-western Colombia
Taxonomy
Black-throated Trogon was in 2024 split into four species:
- Northern Black-throated Trogon - Tropical south-eastern Honduras to extreme north-western Colombia
- Choco Black-throated Trogon - Tropical western Colombia and western Ecuador
- Amazonian Black-throated Trogon - Amazonian South America from eastern Colombia, Ecuador, and Peru to Amazonian Venezuela and the Guianas, as well as to Amazonian Brazil
- Atlantic Black-throated Trogon - northeastern Brazil to Paraguay and northeastern Argentina
Subspecies
This is a monotypic species[1].
Habitat
Mostly humid forest and older second growth, but can occasionally be found in dry forest in Costa Rica. Mostly in lowland, but in specific areas found up to 1200-1300 m asl.
Behaviour
Food consists of fruit and insects, with insects more important than in most trogon species. These are captured with the bird sallying out from a perch. Usually the bird is found in the low to middle levels of the forest.
Vocalisation
Notes with a whistled quality are given in series of 2 - 6 (average 3). Around two notes are given per second.
References
- Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
- Gill, F, D Donsker, and P Rasmussen (Eds). 2023. IOC World Bird List (v 13.2). Doi 10.14344/IOC.ML.13.2. http://www.worldbirdnames.org/
- van Dort, J. and P. Pyle (2023). Northern Black-throated Trogon (Trogon tenellus), version 1.0. In Birds of the World (T. S. Schulenberg and M. A. Bridwell, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bkttro7.01
- Paper discussing the taxonomy of the former members of Black-throated Trogon
Recommended Citation
- BirdForum Opus contributors. (2024) Northern Black-throated Trogon. In: BirdForum, the forum for wild birds and birding. Retrieved 25 September 2024 from https://www.birdforum.net/opus/Northern_Black-throated_Trogon
External Links
GSearch checked for 2020 platform.1