• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Where premium quality meets exceptional value. ZEISS Conquest HDX.

Difference between revisions of "Blue-eared Barbet" - BirdForum Opus

(first step in splitting)
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
[[Image:Blue-eared_Barbet.jpg|thumb|400px|right|Photo &copy; by {{user|jaray|jaray}}<br />Kang Kra Jan National Park, [[Thailand]]]]
 
[[Image:Blue-eared_Barbet.jpg|thumb|400px|right|Photo &copy; by {{user|jaray|jaray}}<br />Kang Kra Jan National Park, [[Thailand]]]]
 
+
'''Disambiguation: this species in the past included what is now [[Black-eared Barbet]] and [[Yellow-eared Barbet]]'''
 
;[[Category:Psilopogon]] [[:Category:Psilopogon|Psilopogon]] cyanotis
 
;[[Category:Psilopogon]] [[:Category:Psilopogon|Psilopogon]] cyanotis
 
==Identification==
 
==Identification==
The major division is between black-eared and blue-eared subspecies which differ slightly in size
+
16-17 cm, 6.3-6.7 inches. 31.6-39.5 g, 1.1-1.4 oz.
 
*forehead black
 
*forehead black
*crown with blue which variably extends to mid-crown and beyond; hind crown green
+
*[[Topography Artwork Heads|crown]] with blue which extends to mid-crown; hind crown green
 
*throat light or pale blue
 
*throat light or pale blue
*band between the throat and breast black: variably present, thickness varies with subspecies
+
*band between the throat and breast black; thickness varies with subspecies, may have red to the rear of the band
 
*[[Topography Artwork Heads|ear-coverts]] black
 
*[[Topography Artwork Heads|ear-coverts]] black
*[[Topography Artwork Heads|crown]] blue: extent varies with subspecies
 
 
*spot below eye large, red
 
*spot below eye large, red
 
*stripe behind and above eye red
 
*stripe behind and above eye red
*stripe from near base of bill back extending rearwards red (separated from bill base by black) (with above, forms a red cheek patch)
+
*stripe from near base of bill back extending rearwards white washed red (separated from bill base by black)
 
*body green
 
*body green
 +
*[[Topography Artwork Heads|ear-coverts]] blue
 
*beak dark, stout
 
*beak dark, stout
====Blue-eared Group====
 
[[Image:Blue-eared Barbet juvenile.JPG|thumb|350px|right|Juvenile<br />Photo &copy; by {{user|robby+thai|robby thai}}<br />Khao Nam Khang National Park, [[Thailand]], May 2018]]
 
16-17 cm, 6.3-6.7 inches. 31.6-39.5 g, 1.1-1.4 oz. Subspecies ''cyanotis'' and ''orientalis''
 
*[[Topography Artwork Heads|ear-coverts]] blue
 
====Black-eared Group====
 
Size as Blue-eared, slightly lighter: 26.3-37 g, 0.93-1.3 oz. Subspecies ''duvaucelii'', ''gigantorhinus'' and ''tanamassae''
 
*[[Topography Artwork Heads|ear-coverts]] black
 
 
 
See also [[#Subspecies|Subspecies]].
 
See also [[#Subspecies|Subspecies]].
 +
<!--- Comment to editors: This image of an immature is from the hybridization zone and could be either species or a hybrid. Therefore hidden [[Image:Blue-eared Barbet juvenile.JPG|thumb|350px|right|Juvenile<br />Photo &copy; by {{user|robby+thai|robby thai}}<br />Khao Nam Khang National Park, [[Thailand]], May 2018]] --->
 +
====Similar species====
 +
Several other mostly green, small barbets are in the area. Color pattern in face, crown, and throat areas are important to note for separation.
 
==Distribution==
 
==Distribution==
 
[[Asia]]: found in [[China]], [[Tibet]], [[Nepal]], [[India]], Eastern [[Himalayas]], [[Bangladesh]], [[Bhutan]]<br />
 
[[Asia]]: found in [[China]], [[Tibet]], [[Nepal]], [[India]], Eastern [[Himalayas]], [[Bangladesh]], [[Bhutan]]<br />
 
'''Southeast Asia''': [[Indochina]], [[Myanmar]], [[Laos]], [[Vietnam]], [[Cambodia]], [[Thailand]], [[Malaysia]], [[Malay Peninsula]],  
 
'''Southeast Asia''': [[Indochina]], [[Myanmar]], [[Laos]], [[Vietnam]], [[Cambodia]], [[Thailand]], [[Malaysia]], [[Malay Peninsula]],  
 
==Taxonomy==
 
==Taxonomy==
Sometimes placed in the genus ''[[:Category:Megalaima|Megalaima]]''. Formerly considered conspecific with [[Little Barbet]].
+
{{Black-blue-eared-barbets}}
  
Reference [[#References|[5]]] notes that the black- and blue-eared groups are sometimes split as different species: subspecies ''cyanotis'', and ''orientalis'' as "Blue-eared Barbet", ''P. cyanotis'' and ''duvaucelii'', ''gigantorhinus'' and ''tanamassae'' as "Black-eared Barbet", ''P. duvaucelii'' despite a wide hybrid zone on the Malayan Peninsula.
+
Sometimes placed in the genus ''[[:Category:Megalaima|Megalaima]]''.  
 
====Subspecies====
 
====Subspecies====
 
Clements recognizes these subspecies[[#References|[1]]]:
 
Clements recognizes these subspecies[[#References|[1]]]:
Line 53: Line 48:
  
 
====Vocalisation====
 
====Vocalisation====
The double note song of [[Little Barbet]] is given throughout range, but study is needed to document the variations with the species.
+
The double note song is given throughout range, but study is needed to document the variations with the species.
 
=====Black-eared Group=====
 
=====Black-eared Group=====
 
A "chiok-chiok-chiok" territorial call lasts up to 2 hours. The courtship call is a lot softer, not unlike a referee's whistle at 1-2 second intervals lasting for minutes.
 
A "chiok-chiok-chiok" territorial call lasts up to 2 hours. The courtship call is a lot softer, not unlike a referee's whistle at 1-2 second intervals lasting for minutes.
Line 59: Line 54:
 
Resident, territorial and sedentary with some post breeding movement away from breeding areas in search of fruit.
 
Resident, territorial and sedentary with some post breeding movement away from breeding areas in search of fruit.
 
==References==
 
==References==
#{{Ref-Clements6thOct23}}#{{Ref-GillDonskerRasmussen22V13.2}}#Avibase
+
#{{Ref-Clements6thOct23}}#{{Ref-GillDonskerRasmussen22V13.2}}#Krishnan, A. (2023). Blue-eared Barbet (Psilopogon cyanotis), version 1.0. In Birds of the World (N. D. Sly and S. M. Billerman, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.buebar1.01
#Handbook of the Birds of the World Alive (retrieved October 2016)
 
 
#{{Ref-Eatonetal21}}
 
#{{Ref-Eatonetal21}}
 
{{ref}}
 
{{ref}}
  
 
==External Links==
 
==External Links==
{{GSearch|Psilopogon+duvaucelii}}  
+
{{GSearch|"Psilopogon cyanotis" {{!}} "Blue-eared Barbet"}}
 +
{{GS-checked}}1<br /><br />
 
[[Category:Birds]] [[Category:Psilopogon]]
 
[[Category:Birds]] [[Category:Psilopogon]]

Latest revision as of 01:51, 17 June 2024

Photo © by jaray
Kang Kra Jan National Park, Thailand

Disambiguation: this species in the past included what is now Black-eared Barbet and Yellow-eared Barbet

Psilopogon cyanotis

Identification

16-17 cm, 6.3-6.7 inches. 31.6-39.5 g, 1.1-1.4 oz.

  • forehead black
  • crown with blue which extends to mid-crown; hind crown green
  • throat light or pale blue
  • band between the throat and breast black; thickness varies with subspecies, may have red to the rear of the band
  • ear-coverts black
  • spot below eye large, red
  • stripe behind and above eye red
  • stripe from near base of bill back extending rearwards white washed red (separated from bill base by black)
  • body green
  • ear-coverts blue
  • beak dark, stout

See also Subspecies.

Similar species

Several other mostly green, small barbets are in the area. Color pattern in face, crown, and throat areas are important to note for separation.

Distribution

Asia: found in China, Tibet, Nepal, India, Eastern Himalayas, Bangladesh, Bhutan
Southeast Asia: Indochina, Myanmar, Laos, Vietnam, Cambodia, Thailand, Malaysia, Malay Peninsula,

Taxonomy

Black-eared Barbet, Blue-eared Barbet and Yellow-eared Barbet were treated as a single species, Blue-eared Barbet, in the past. Whether the split is warranted depends among other things on whether one finds the hybrid zone between the black-eared and blue-eared forms is wide or narrow -- different sources differ on this. The main, world-wide authorities at the moment split all three, and Opus follows.

Sometimes placed in the genus Megalaima.

Subspecies

Clements recognizes these subspecies[1]:

  • P. c. cyanotis: South-eastern Nepal to Bangladesh, north-eastern India, southern China, Burma, Malay Peninsula. [Blue ear-coverts; orangey red cheek patch; narrow black band between throat and breast]
  • P. c. orientalis: Eastern Thailand, Cambodia, Laos and Vietnam. [Blue ear-coverts; generally slightly larger and paler than P. d. cyanotis; thin red patch below the black line separating the throat and breast]

Several additional subspecies are not recognised by all authorities [3].

Habitat

Mainly primary coniferous forest, forest edge in lowlands and foothills. May frequent new growth and patchy forest. Also visits plantations, gardens, deciduous and bamboo forest. Mainly below 1200 m asl, but below 700 m in Bhutan. Has been recorded to 1525 m in southeast Asia and to 1600 m in southwest China

Behaviour

Usually seeks food in canopy, avoiding lower levels of the forest.

Diet

Fruit of figs and other trees. Also some insects. Forages in groups of up to 100 at fruiting trees in Thailand. Has been seen foraging with pigeons and other species.

Breeding

The breeding season is largely dependant on geography. Sings for up to 2 hours at a time during the breeding season by both pair members simultaneously. Head-bobbing, lateral tail movement. During courtship, fruit is offered before copulation. Nest excavated in dead tree, often on the underside of branches at up to 25 m, but mainly between 3-12 m.

Blue-eared Group

Lays 4 white eggs.
Breeding season:

  • January to August in much of range.
  • March to September in Thailand.

Vocalisation

The double note song is given throughout range, but study is needed to document the variations with the species.

Black-eared Group

A "chiok-chiok-chiok" territorial call lasts up to 2 hours. The courtship call is a lot softer, not unlike a referee's whistle at 1-2 second intervals lasting for minutes.

Movement

Resident, territorial and sedentary with some post breeding movement away from breeding areas in search of fruit.

References

  1. 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/
  2. 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/
  3. Krishnan, A. (2023). Blue-eared Barbet (Psilopogon cyanotis), version 1.0. In Birds of the World (N. D. Sly and S. M. Billerman, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.buebar1.01
  4. Eaton, JA, B van Balen, NW Brickle, FE Rheindt 2021. Birds of the Indonesian Archipelago (Greater Sundas and Wallacea), Second Edition. Lynx Editions. ISBN978-84-16728-44-2

Recommended Citation

External Links

GSearch checked for 2020 platform.1

Back
Top