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Difference between revisions of "Azure-crowned Hummingbird" - BirdForum Opus

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[[Image:Amazilia cyanocephala Azure-Crowned Hummingbird .jpg|thumb|550px|right|Photo by {{user|Raul+Padilla|Raul Padilla}}, Otatla, [[Mexico]], February 2012]]
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[[Image:Amazilia cyanocephala Azure-Crowned Hummingbird .jpg|thumb|550px|right|Photo &copy; by {{user|Raul+Padilla|Raul Padilla}}<br />Otatla, [[Mexico]], 5 February, 2012]]
 
'''Alternative names: Red-billed Azurecrown; Mosquitia Hummingbird (''chlorostephana'')'''
 
'''Alternative names: Red-billed Azurecrown; Mosquitia Hummingbird (''chlorostephana'')'''
;[[: Category:Amazilia|Amazilia]] cyanocephala
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;[[: Category:Saucerottia|Saucerottia]] cyanocephala
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''Amazilia cyanocephala''<br />
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''Agyrtria cyanocephala''
 
==Identification==
 
==Identification==
A medium-sized Hummingbird (10-11 cm), the only one in its range with a blue crown (male) and all-white underparts.
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10-11 cm (3¾-4¼ in) A medium-sized Hummingbird, the only one in its range with a blue crown (male) and all-white underparts.
 
* Straight, medium-sized bill
 
* Straight, medium-sized bill
 
* Glittering turquoise to violet-blue crown
 
* Glittering turquoise to violet-blue crown
 
* Golden green to bronze-green back, rump and flanks
 
* Golden green to bronze-green back, rump and flanks
 
* White centre of underparts
 
* White centre of underparts
* Bronze-green undertail-coverts with white fringes
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* Bronze-green undertail-[[Topography#General Anatomy|coverts]] with white fringes
 
* Greyish green to bronze-green tail
 
* Greyish green to bronze-green tail
 
* ''chlorostephana'' has a metallic green to turquoise green crown and is smaller than nominate
 
* ''chlorostephana'' has a metallic green to turquoise green crown and is smaller than nominate
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Common in parts of its range.
 
Common in parts of its range.
 
==Taxonomy==
 
==Taxonomy==
This species is sometimes placed in genus ''[[: Category:Agyrtria|Agyrtria]]''.
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====Subspecies====
====Subspecies<sup>[[#References|[1]]]</sup>====
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Two subspecies are recognized<sup>[[#References|[1]]]</sup>:
Two subspecies are recognized:
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*''S. c. cyanocephala'':
*''A. c. cyanocephala'':
 
 
:*South-eastern [[Mexico]] to north-central [[Nicaragua]]
 
:*South-eastern [[Mexico]] to north-central [[Nicaragua]]
*''A. c. chlorostephana'':
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*''S. c. chlorostephana'':
 
:*Mosquito coast of eastern [[Honduras]] and north-eastern [[Nicaragua]]
 
:*Mosquito coast of eastern [[Honduras]] and north-eastern [[Nicaragua]]
 
==Habitat==
 
==Habitat==
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Some populations are migratory, others sedentary (eg. in Veracruz and San Luis Potosi).  
 
Some populations are migratory, others sedentary (eg. in Veracruz and San Luis Potosi).  
 
==References==
 
==References==
#{{Ref-Clements6thAug13}}#{{Ref-HBWVol5}}#Avibase
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#{{Ref-Clements6thOct22}}#{{Ref-HBWVol5}}#Avibase
#BF Member observations
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#Bird Forum Member observations
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
{{GSearch|Amazilia+cyanocephala}}  
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{{GSearch|"Saucerottia cyanocephala" {{!}} "Amazilia cyanocephala" {{!}} "Agyrtria cyanocephala" {{!}} "Azure-crowned Hummingbird" {{!}} "Red-billed Azurecrown" {{!}} "Mosquitia Hummingbird"}}  
[[Category:Birds]][[Category:Amazilia]]
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{{GS-checked}}1
{{GS-checked}}
 
 
<br />
 
<br />
 
<br />
 
<br />
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[[Category:Birds]][[Category:Saucerottia]]

Revision as of 20:26, 28 January 2023

Photo © by Raul Padilla
Otatla, Mexico, 5 February, 2012

Alternative names: Red-billed Azurecrown; Mosquitia Hummingbird (chlorostephana)

Saucerottia cyanocephala

Amazilia cyanocephala
Agyrtria cyanocephala

Identification

10-11 cm (3¾-4¼ in) A medium-sized Hummingbird, the only one in its range with a blue crown (male) and all-white underparts.

  • Straight, medium-sized bill
  • Glittering turquoise to violet-blue crown
  • Golden green to bronze-green back, rump and flanks
  • White centre of underparts
  • Bronze-green undertail-coverts with white fringes
  • Greyish green to bronze-green tail
  • chlorostephana has a metallic green to turquoise green crown and is smaller than nominate

Females have more turquoise reflections on crown and neck.
Juveniles have tipped rufous feathers on upperparts, less white on underparts and a more greyish-brown belly.

Similar Species

The White-bellied Emerald is similar, but lacks the blue crown, and can show a coppery sheen on the back in sunlight.
Violet-crowned Hummingbird is also very similar but is entirely allopatric.

Distribution

Central America: found in south-eastern Mexico, Guatemala, Belize, El Salvador, Honduras and Nicaragua.
Common in parts of its range.

Taxonomy

Subspecies

Two subspecies are recognized[1]:

  • S. c. cyanocephala:
  • S. c. chlorostephana:

Habitat

Moist montanes, oak-pine woodlands and gardens.
Subspecies differ in altitudinal distribution, nominate occurs from 500 to 1800 m, sometimes higher, chlorostephana below 100 m.

Behaviour

Diet

Feeds on nectar, especially of flowering epiphytes.
Forages in all strata of forest, mainly 4 to 6 m above the ground. Hovers only briefly. Groups sometimes concentrante at flowering Inga trees.

Breeding

Breeding season varies through range. The nest is cup-shaped and made of plant fibres, scales of tree fern, mosses and lichens. It's placed in a fork or on a horizontal branch 1.5 to 3 m above the ground, sometimes higher (up to 15 m). Lays two white eggs.

Movements

Some populations are migratory, others sedentary (eg. in Veracruz and San Luis Potosi).

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of Birds of the World: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. Del Hoyo, J, A Elliot, and J Sargatal, eds. 1999. Handbook of the Birds of the World. Volume 5: Barn-Owls to Hummingbirds. Barcelona: Lynx Edicions. ISBN 978-8487334252
  3. Avibase
  4. Bird Forum Member observations

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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