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Difference between revisions of "Ferruginous Pygmy Owl" - BirdForum Opus

(taxonomy, including Tucuman Pygmy-Owl)
(Taxonomy expanded. Photo caption. References updated. Video link)
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{{incomplete}}
 
{{incomplete}}
[[Image:Ferruginous_Pygmy_Owl.jpg|thumb|550px|right|Photo by {{user|Ciro+Albano|Ciro Albano}}<br />Location: [[Brazil]]]]
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[[Image:Ferruginous_Pygmy_Owl.jpg|thumb|550px|right|Photo by {{user|Ciro+Albano|Ciro Albano}}<br />Ribeiro Gonçalves, Piauí State, [[Brazil]], January 2005]]
 
;[[: Category:Glaucidium|Glaucidium]] brasilianum
 
;[[: Category:Glaucidium|Glaucidium]] brasilianum
 
'''Includes Ridgway's Pygmy-Owl; Tucuman Pygmy-Owl'''
 
'''Includes Ridgway's Pygmy-Owl; Tucuman Pygmy-Owl'''
 
==Identification==
 
==Identification==
 
Red, brown, and grey morphs occur, and tail varies having whitish, orange-buffy, or no bars. As with most Pygmy-Owls, there are pale areas on the back of the head imitating an extra pair of eyes.
 
Red, brown, and grey morphs occur, and tail varies having whitish, orange-buffy, or no bars. As with most Pygmy-Owls, there are pale areas on the back of the head imitating an extra pair of eyes.
 
 
==Distribution==
 
==Distribution==
 
From [[Arizona]] and south-east [[Texas]] through [[Mexico]] and [[Central America]] to [[South America]] where found east of the Andes to [[Argentina]].  
 
From [[Arizona]] and south-east [[Texas]] through [[Mexico]] and [[Central America]] to [[South America]] where found east of the Andes to [[Argentina]].  
 
==Taxonomy==
 
==Taxonomy==
 +
In the past, [[Austral Pygmy-Owl]] has been considered part of Ferruginous Pygmy-Owl. Konig et al.<sup>[[#References|2]]</sup> additionally have split subspecies ''ridgwayi'' (including ''cactorum'' and the not universally recognized ''saturatum'') as the full species Ridgway's Pygmy-Owl ''Glaucidium ridgwayi'' which would include the birds from [[Panama]] to the [[USA]]; this has not been recognized by any of the world-wide checklists. Tucuman Pygmy-Owl (ssp tucumanum) is also sometimes split as full species.
 +
====Subspecies====
 
Thirteen subspecies are recognized by Clements<sup>[[#References|1]]</sup>.  
 
Thirteen subspecies are recognized by Clements<sup>[[#References|1]]</sup>.  
 
+
*''G. b. cactorum'': South-eastern [[Arizona]] and western [[Mexico]] (Sonora to Oaxaca)
In the past, [[Austral Pygmy-Owl]] has been considered part of Ferruginous Pygmy-Owl. Konig et al.<sup>[[#References|2]]</sup> additionally have split subspecies ''ridgwayi'' (including ''cactorum'' and the not universally recognized ''saturatum'') as the full species Ridgway's Pygmy-Owl ''Glaucidium ridgwayi'' which would include the birds from [[Panama]] to the [[USA]]; this has not been recognized by any of the world-wide checklists. Tucuman Pygmy-Owl (ssp tucumanum) is also sometimes split as full species.
+
*''G. b. saturatum'': Southern Mexico (Chiapas) and [[Guatemala]]
 +
*''G. b. ridgwayi'': Southern [[Texas]] (lower Rio Grande Valley) to [[Panama]] (Canal Zone)
 +
*''G. b. medianum'': Tropical lowlands of northern [[Colombia]]
 +
*''G. b. margaritae'': Isla Margarita ([[Venezuela]])
 +
*''G. b. phaloenoides'': Tropical northern Venezuela, [[Trinidad]] and the [[Guianas]]
 +
*''G. b. duidae'': Tepuis of southern Venezuela (Mount Duida)
 +
*''G. b. olivaceum'': Tepuis of southern Venezuela (Mount Auyan-Tepuí)
 +
*''G. b. ucayalae'': Eastern base of Andes of south-eastern Colombia to [[Peru]] and northern [[Bolivia]]
 +
*''G. b. brasilianum'': Southern Amazonian [[Brazil]] to eastern [[Paraguay]], [[Uruguay]] and north-eastern [[Argentina]]
 +
*''G. b. pallens'': Chaco of eastern [[Bolivia]], western Paraguay and northern Argentina
 +
*''G. b. stranecki'': Southern Uruguay to central Argentina
 +
*''G. b. tucumanum'' (Tucuman): Subtropical western Argentina (Salta and Tucumán to Córdoba)
 
==Habitat==
 
==Habitat==
 
Lowland forests to semiopen areas.
 
Lowland forests to semiopen areas.
 
==Behaviour==
 
==Behaviour==
 
==References==
 
==References==
# Clements, James F. 2007. ''The Clements Checklist of Birds of the World''. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
+
#{{Ref-Clements6thDec10}}#König, C., F. Weick,  & J.-H. Becking. 1999. Owls - a guide to the owls of the world. Yale University Press. ISBN 0300079206
# König, C., F. Weick,  & J.-H. Becking. 1999. Owls - a guide to the owls of the world. Yale University Press. ISBN 0300079206
+
{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Glaucidium+brasilianum}}
 
{{GSearch|Glaucidium+brasilianum}}
[[Category:Birds]][[Category:Glaucidium]]
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<br />
 +
{{Video|Ferruginous_Pygmy_Owl}}
 +
[[Category:Birds]][[Category:Glaucidium]] [[Category:Videos]]

Revision as of 15:49, 30 December 2010


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Photo by Ciro Albano
Ribeiro Gonçalves, Piauí State, Brazil, January 2005
Glaucidium brasilianum

Includes Ridgway's Pygmy-Owl; Tucuman Pygmy-Owl

Identification

Red, brown, and grey morphs occur, and tail varies having whitish, orange-buffy, or no bars. As with most Pygmy-Owls, there are pale areas on the back of the head imitating an extra pair of eyes.

Distribution

From Arizona and south-east Texas through Mexico and Central America to South America where found east of the Andes to Argentina.

Taxonomy

In the past, Austral Pygmy-Owl has been considered part of Ferruginous Pygmy-Owl. Konig et al.2 additionally have split subspecies ridgwayi (including cactorum and the not universally recognized saturatum) as the full species Ridgway's Pygmy-Owl Glaucidium ridgwayi which would include the birds from Panama to the USA; this has not been recognized by any of the world-wide checklists. Tucuman Pygmy-Owl (ssp tucumanum) is also sometimes split as full species.

Subspecies

Thirteen subspecies are recognized by Clements1.

  • G. b. cactorum: South-eastern Arizona and western Mexico (Sonora to Oaxaca)
  • G. b. saturatum: Southern Mexico (Chiapas) and Guatemala
  • G. b. ridgwayi: Southern Texas (lower Rio Grande Valley) to Panama (Canal Zone)
  • G. b. medianum: Tropical lowlands of northern Colombia
  • G. b. margaritae: Isla Margarita (Venezuela)
  • G. b. phaloenoides: Tropical northern Venezuela, Trinidad and the Guianas
  • G. b. duidae: Tepuis of southern Venezuela (Mount Duida)
  • G. b. olivaceum: Tepuis of southern Venezuela (Mount Auyan-Tepuí)
  • G. b. ucayalae: Eastern base of Andes of south-eastern Colombia to Peru and northern Bolivia
  • G. b. brasilianum: Southern Amazonian Brazil to eastern Paraguay, Uruguay and north-eastern Argentina
  • G. b. pallens: Chaco of eastern Bolivia, western Paraguay and northern Argentina
  • G. b. stranecki: Southern Uruguay to central Argentina
  • G. b. tucumanum (Tucuman): Subtropical western Argentina (Salta and Tucumán to Córdoba)

Habitat

Lowland forests to semiopen areas.

Behaviour

References

  1. Clements, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
  2. König, C., F. Weick, & J.-H. Becking. 1999. Owls - a guide to the owls of the world. Yale University Press. ISBN 0300079206

Recommended Citation

External Links


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