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Difference between revisions of "Spectacled Thrush" - BirdForum Opus

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Northern [[Brazil]] to [[Colombia]], [[Trinidad]] and [[Tobago]], and the southern [[Lesser Antilles]] reaching at least to [[Guadeloupe]]. This bird has been spreading north through the Lesser Antilles for example arriving in [[Martinique]] in 1951.  
 
Northern [[Brazil]] to [[Colombia]], [[Trinidad]] and [[Tobago]], and the southern [[Lesser Antilles]] reaching at least to [[Guadeloupe]]. This bird has been spreading north through the Lesser Antilles for example arriving in [[Martinique]] in 1951.  
 
==Taxonomy==
 
==Taxonomy==
−
[[Image:Thrush_nest_P1120665.JPG|thumb|400px|right|Nest built by Spectacled Thrush<br />Photo by {{user|njlarsen|njlarsen}}<br />[[Dominica]], July 2014<br />The Opus editors do not generally encourage nest photography but has determined that no birds were harmed in this instance]]
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Two subspecies are recognized<sup>[[#References|[1]]]</sup>:
 
Two subspecies are recognized<sup>[[#References|[1]]]</sup>:
 
* ''T. n. nudigens'' in the [[Lesser Antilles]], [[Trinidad]] and [[Tobago]], and northern [[South America]] to the Amazon river from [[Colombia]] to the [[Guianas]]
 
* ''T. n. nudigens'' in the [[Lesser Antilles]], [[Trinidad]] and [[Tobago]], and northern [[South America]] to the Amazon river from [[Colombia]] to the [[Guianas]]
 
* ''T. n. extimus'' in [[Brazil]] south of the Amazon
 
* ''T. n. extimus'' in [[Brazil]] south of the Amazon
  
 +
[[Image:Thrush_nest_P1120665.JPG|thumb|400px|right|Nest built by Spectacled Thrush<br />Photo by {{user|njlarsen|njlarsen}}<br />[[Dominica]], July 2014<br />The Opus editors do not generally encourage nest photography but has determined that no birds were harmed in this instance]]
 
[[Ecuadorian Thrush]] is included in this species by some authorities, but the Opus follow a majority among world-wide checklists according to which it is split.
 
[[Ecuadorian Thrush]] is included in this species by some authorities, but the Opus follow a majority among world-wide checklists according to which it is split.
  
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==Behaviour==
 
==Behaviour==
 
This thrush is agressive towards other similar birds and has been suspected as a culprit in the near extinction of [[Forest Thrush]] from [[St. Lucia]].   
 
This thrush is agressive towards other similar birds and has been suspected as a culprit in the near extinction of [[Forest Thrush]] from [[St. Lucia]].   
 +
 +
====Nesting====
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Nesting usually happens May-August (in [[Trinidad]] and [[Tobago]]) Nest is usually built in a strong branch fork 6-25 feet above ground. Clutch averages almost 3 eggs, and sometimes, two clutches occur per year.
 
==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
 
# 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
 
#[http://www.museum.lsu.edu/~Remsen/SACCprop295x.html SACC proposal] to change name from Yellow-eyed Thrush to Spectacled Thrush
 
#[http://www.museum.lsu.edu/~Remsen/SACCprop295x.html SACC proposal] to change name from Yellow-eyed Thrush to Spectacled Thrush
 
#[http://www.museum.lsu.edu/~Remsen/SACCprop385.html SACC proposal] to split Ecuadorian Thrush from the current species
 
#[http://www.museum.lsu.edu/~Remsen/SACCprop385.html SACC proposal] to split Ecuadorian Thrush from the current species
 +
# Richard ffrench. 1991. A guide to the Birds of Trinidad and Tobago. Comstock/Cornell Paperbacks. ISBN 0-8014-9792-2
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Turdus+nudigenis}}
 
{{GSearch|Turdus+nudigenis}}
 
[[Category:Birds]] [[Category:Turdus]]
 
[[Category:Birds]] [[Category:Turdus]]

Revision as of 18:27, 19 July 2014

Photo by Graham Osborne
Arima, Trinidad, December 2005

Alternative names: Bare-eyed Robin; Bare-eyed Thrush; Yellow-eyed Thrush

Turdus nudigenis

Identification

Upperparts are plain brown, with underside lighter. Throat is striped with white and brown, but a much more obvious field mark is the large yellow eyering that consists of bare facial skin. The bill is yellow. The color of the brown parts can vary quite a bit, some of the variation might be dependent on light quality, but some may also depend on geographic variation.

Similar Species

The yellow eyering is shared with Forest Thrush, but the latter species has underside scaled in brown and white.

Naming

This species has in the Americas traditionally been known as Bare-eyed Robin or Bare-eyed Thrush, and those are the names mostly used in local field guides. However, Bare-eyed Thrush on a world wide basis refer to the African species Turdus tephronotus. Therefore, the South American Classification Committee and IOC have changed to Spectacled Thrush, which seems to be the name of the future for this species (Yellow-eyed Thrush is a misnomer as the eye is not yellow).

Distribution

Northern Brazil to Colombia, Trinidad and Tobago, and the southern Lesser Antilles reaching at least to Guadeloupe. This bird has been spreading north through the Lesser Antilles for example arriving in Martinique in 1951.

Taxonomy

Two subspecies are recognized[1]:

Nest built by Spectacled Thrush
Photo by njlarsen
Dominica, July 2014
The Opus editors do not generally encourage nest photography but has determined that no birds were harmed in this instance

Ecuadorian Thrush is included in this species by some authorities, but the Opus follow a majority among world-wide checklists according to which it is split.

Habitat

It seems mainly to occur in cultivated areas and open dry forest in Dominica, while the Forest Thrush is found in old growth rainforest.

Behaviour

This thrush is agressive towards other similar birds and has been suspected as a culprit in the near extinction of Forest Thrush from St. Lucia.

Nesting

Nesting usually happens May-August (in Trinidad and Tobago) Nest is usually built in a strong branch fork 6-25 feet above ground. Clutch averages almost 3 eggs, and sometimes, two clutches occur per year.

References

  1. 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
  2. SACC proposal to change name from Yellow-eyed Thrush to Spectacled Thrush
  3. SACC proposal to split Ecuadorian Thrush from the current species
  4. Richard ffrench. 1991. A guide to the Birds of Trinidad and Tobago. Comstock/Cornell Paperbacks. ISBN 0-8014-9792-2

Recommended Citation

External Links

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