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・ Masked booby
・ Masked cardinal
・ Masked corydoras
・ Masked crimson tanager
・ Masked depression
・ Masked duck
・ Masked Emotions
・ Masked finch
・ Masked finfoot
・ Masked flowerpiercer
・ Masked flying fox
・ Masked frog
・ Masked frog (disambiguation)
・ Masked fruiteater
・ Masked garden eel
Masked gnatcatcher
・ Masked hamlet
・ Masked Intruder
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・ Masked lapwing
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・ Masked Man
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Masked gnatcatcher : ウィキペディア英語版
Masked gnatcatcher

The masked gnatcatcher (''Polioptila dumicola'') is a small active insectivorous songbird, found in northern Argentina, Uruguay, Paraguay, Bolivia and southern and central Brazil. It is found in a wide range of semi-open habitats, including dry forest and Cerrado. It is generally fairly common, and consequently considered to be of least concern by BirdLife International and IUCN.
Its jizz is similar to that of other gnatcatchers; a small bird with a relatively long thin bill, a long frequently cocked tail, and grey upperparts. The central rectrices are black, while the outer are white (consequently, the tail appears primarily black from above, white from below), and there is a white patch in the wing (caused by broad white edging to the tertials). Males of the southern and western group (including subspecies ''saturata''), the masked gnatcatchers in the strict sense, have grey underparts and a broad black mask. Females lack the mask, but instead have a black patch behind the eyes on the auriculars. The northern nominate subspecies ''dumicola'' is distinctive, with white underparts in both sexes, and a narrow black mask in the male. It may be a separate species, Berlepsch's gnatcatcher.
==References==

* Atwood, J. L.; & Lerman, S. B. (2006). Masked Gnatcatcher (Polioptila dumicola). pp. 376 in: del Hoyo, J.; Elliott, A.; & Christie, D. A. eds. (2006). ''Handbook of the Birds of the World.'' Vol. 11. Old World Flycatchers to Old World Warblers. Lynx Edictions, Barcelona. ISBN 84-96553-06-X



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