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Difference between revisions of "Great-tailed Grackle" - BirdForum Opus

(→‎Subspecies: Update link)
(Pictures of female, youngster and flight. References updated)
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;[[:Category:Quiscalus|Quiscalus]] mexicanus
 
;[[:Category:Quiscalus|Quiscalus]] mexicanus
 
==Identification==
 
==Identification==
A large (40cm) totally black bird (M) with a long, sharp bill and an impressively long tail that is held vertically in flight, like a boat rudder.  The yellow eye is diagnostic.  The plumage of the male shows many colors in sunlight due to iridescence; blues and greens predominate. The female is brown with lighter underparts, and with a shorter tail.
+
A large (40cm) totally black bird (M) with a long, sharp bill and an impressively long tail that is held vertically in flight, like a boat rudder.  The yellow eye is diagnostic.  The plumage of the male shows many colors in sunlight due to iridescence; blues and greens predominate.<br />
 +
 
 +
The female is brown with lighter underparts, and with a shorter tail.
 
====Similar Species====
 
====Similar Species====
 
On Gulf Coast, can be distinguished from [[Boat-tailed Grackle]] by eye color.
 
On Gulf Coast, can be distinguished from [[Boat-tailed Grackle]] by eye color.
  
 
==Distribution==
 
==Distribution==
 
+
[[Image:DSC07282.jpg|thumb|350px|right|Female<br />Photo by {{user|creaturesnapper|creaturesnapper}}<br />Akumal, Yucatan, [[Mexico]], December 2013]]
  
 
In the [[United States]] found from southern [[California]] east to [[Iowa]] south to [[Louisiana]]. Also found throughout [[Mexico]] and [[Central America]] south to [[Peru]].
 
In the [[United States]] found from southern [[California]] east to [[Iowa]] south to [[Louisiana]]. Also found throughout [[Mexico]] and [[Central America]] south to [[Peru]].
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*''Q. m. prosopidicola'':  
 
*''Q. m. prosopidicola'':  
 
:*South-eastern [[New Mexico]] to southern [[Texas]], Coahuila, San Luis Potosí and southern Tamaulipas
 
:*South-eastern [[New Mexico]] to southern [[Texas]], Coahuila, San Luis Potosí and southern Tamaulipas
 +
[[Image:8242605-4303fg First year Great-tailed Grackle.jpg|thumb|350px|right|First Year<br />Photo by {{user|bobsofpa|bobsofpa}}<br />Kenedy County, [[Texas]], [[USA]], April 2005]]
 
*''Q. m. graysoni'':  
 
*''Q. m. graysoni'':  
 
:*Coastal north-western [[Mexico]] (Sinaloa)
 
:*Coastal north-western [[Mexico]] (Sinaloa)
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*''Q. m. peruvianus'':
 
*''Q. m. peruvianus'':
 
:*Pacific coast of [[Costa Rica]] to north-western [[Peru]] and north-western [[Venezuela]]
 
:*Pacific coast of [[Costa Rica]] to north-western [[Peru]] and north-western [[Venezuela]]
 
 
==Habitat==
 
==Habitat==
 
They can be found in a wide variety of habitats; marshes, wetlands, hill bushy areas, golf courses, gardens, and shopping malls.
 
They can be found in a wide variety of habitats; marshes, wetlands, hill bushy areas, golf courses, gardens, and shopping malls.
 +
[[Image:18818GracklewShrimp.jpg|thumb|350px|right|Photo by {{user|Peacefrog2|Greg Lavaty}}<br />Galveston, [[Texas]], February 2005]]
 
==Behaviour==
 
==Behaviour==
 
In hot areas they will drink from any water available including swimming pools, and they may even take a voluntary swim!
 
In hot areas they will drink from any water available including swimming pools, and they may even take a voluntary swim!
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They can be noisy, especially during breeding displays, when the male issues loud calls at what looks to be great physical effort.
 
They can be noisy, especially during breeding displays, when the male issues loud calls at what looks to be great physical effort.
 
==References==
 
==References==
#{{Ref-Clements6thAug11}}#BF Member Observations
+
#{{Ref-Clements6thAug13}}#BF Member Observations
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==

Revision as of 20:22, 14 August 2014

Male
Photo by zweiblumen
Quepos, Costa Rica, November 2004
Quiscalus mexicanus

Identification

A large (40cm) totally black bird (M) with a long, sharp bill and an impressively long tail that is held vertically in flight, like a boat rudder. The yellow eye is diagnostic. The plumage of the male shows many colors in sunlight due to iridescence; blues and greens predominate.

The female is brown with lighter underparts, and with a shorter tail.

Similar Species

On Gulf Coast, can be distinguished from Boat-tailed Grackle by eye color.

Distribution

Female
Photo by creaturesnapper
Akumal, Yucatan, Mexico, December 2013

In the United States found from southern California east to Iowa south to Louisiana. Also found throughout Mexico and Central America south to Peru.

Taxonomy

Subspecies

This is a polytypic species consisting of eight subspecies[1]:

  • Q. m. nelsoni:
  • Q. m. monsoni:
  • South-eastern Arizona to western Texas and Mexican Plateau to Jalisco and Guanajuato
  • Q. m. prosopidicola:
  • South-eastern New Mexico to southern Texas, Coahuila, San Luis Potosí and southern Tamaulipas
First Year
Photo by bobsofpa
Kenedy County, Texas, USA, April 2005
  • Q. m. graysoni:
  • Coastal north-western Mexico (Sinaloa)
  • Q. m. obscurus:
  • Coastal south-western Mexico (Nayarit to Guerrero)
  • Q. m. mexicanus:
  • Southern Mexico (eastern Jalisco and San Luis Potosí) to northern Nicaragua
  • Q. m. loweryi:
  • Coastal Yucatán Peninsula, Belize and adjacent offshore islands
  • Q. m. peruvianus:

Habitat

They can be found in a wide variety of habitats; marshes, wetlands, hill bushy areas, golf courses, gardens, and shopping malls.

Photo by Greg Lavaty
Galveston, Texas, February 2005

Behaviour

In hot areas they will drink from any water available including swimming pools, and they may even take a voluntary swim!

They are social, particularly at dusk when they gather in sizeable flocks to roost in trees.

Diet

Great-tailed grackles frequent urban landscapes, often feeding in highly-developed areas such as parking lots. They will eat almost anything.

Vocalisation

They can be noisy, especially during breeding displays, when the male issues loud calls at what looks to be great physical effort.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. BF Member Observations

Recommended Citation

External Links


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