Gnatcatchers (Polioptilidae)
Masked Gnatcatcher (Polioptila dumicola) - HBW 11, p. 376
French: Gobemoucheron masqué
German: Maskenmückenfänger
Spanish: Perlita Azul
Other common names: Berlepsch’s Gnatcatcher (berlepschi)
Taxonomy: Sylvia dumicola Vieillot, 1817, Paraguay.
Race berlepschi may represent a separate species; has been suggested that intergradation between it and nominate race has increased in S Brazil (S Mato Grosso) as forests which once isolated races have been removed, but other authors comment that no intermediate specimens known; more study needed in presumed contact zone in vicinity of border between Mato Grosso and E Bolivia (Santa Cruz). Some specimens from NE Bolivia (E Beni) asserted to be of race berlepschi, but this location nearly 1000 km W of nearest confirmed records of latter; further study required. Three subspecies r.. View all taxonomy...
Race berlepschi may represent a separate species; has been suggested that intergradation between it and nominate race has increased in S Brazil (S Mato Grosso) as forests which once isolated races have been removed, but other authors comment that no intermediate specimens known; more study needed in presumed contact zone in vicinity of border between Mato Grosso and E Bolivia (Santa Cruz). Some specimens from NE Bolivia (E Beni) asserted to be of race berlepschi, but this location nearly 1000 km W of nearest confirmed records of latter; further study required. Three subspecies recognized.
Subspecies and Distribution:
- berlepschi Hellmayr, 1901 - C Brazil (S Maranhão to S Mato Grosso, SC & E Goiás and S Minas Gerais).
- saturata Todd, 1946 - highlands of Bolivia (S Cochabamba, EC Santa Cruz).
- dumicola (Vieillot, 1817) - E Bolivia (Beni, Santa Cruz and SW Cochabamba S through Tarija), Paraguay and S Brazil (C Mato Grosso do Sul) S to E Argentina (E Jujuy and E Salta S to N & E Córdoba and N Buenos Aires) and Uruguay.
- Least Concern Enlarge map
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A male singing Locality Camiri, Santa Cruz Department, Bolivia (ssp dumicola)
Josep del Hoyo 11 August 2005 6 years ago 42 sec 4.7 -
A male foraging in a tree. Locality Otamendi Natural Reserve, Buenos Aires Province, Argentina (ssp dumicola)
Josep del Hoyo 24 September 2008 3 years ago 24 sec 4.4 -
A female preening Locality Camiri, Santa Cruz Department, Bolivia (ssp dumicola)
Josep del Hoyo 11 August 2005 6 years ago 12 sec 4.4 -
A male in the forest. Locality San Carlos Centro, Santa Fe Province, Argentina (ssp dumicola)
Martin Manassero 11 September 2011 36 weeks ago 24 sec 4 -
A male singing and moving in a dead tree. Locality Fazenda Praia Alta, Tocantins State, Brazil (ssp berlepschi)
Josep del Hoyo 4 August 2011 1 week ago ADDED LAST MONTH 22 sec 3.7 -
A male in a tree, foraging and singing. Locality Otamendi Natural Reserve, Buenos Aires Province, Argentina (ssp dumicola)
Josep del Hoyo 24 September 2008 3 years ago 29 sec 3.5
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Male perched on a twig.
Locality Buenos Aires, Buenos Aires Province, Argentina (ssp Dumicola)
Santiago Meligeni Lozano 23 May 2010 2 years ago 4.5 -
Female shaking a moth in its beak.
Locality Buenos Aires, Buenos Aires Province, Argentina (ssp dumicola)
Santiago Meligeni Lozano 5 November 2010 1 year ago 4.4 -
On a tree
Locality Buenos Aires, Buenos Aires Province, Argentina
oleicfrisbee 50 weeks ago 3.8 -
Female on a twig.
Locality Argentina
Dannie Polley 11 August 2011 41 weeks ago 3.7 -
Pearched on a branch.
Locality Brotas, São Paulo State, Brazil
Carlos Henrique 4 July 2009 2 years ago 3.7 -
Adult male
Locality Ceibas, Buenos Aires Province, Argentina
David Brassington 19 September 2009 2 years ago 3.5
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A male singing. Locality Fazenda Praia Alta, Tocantins State, Brazil
(ssp berlepschi)
Josep del Hoyo 4 August 2011 1 week ago ADDED LAST MONTH 4 -
Two song phrases from a male Locality Serra dos Caiabis, Alta Floresta, Mato Grosso State, Brazil
(ssp berlepschi)
Bradley Davis 14 July 2006 2 years ago 3
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