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Parana Antwren Images
The Marsh Antwren (Stymphalornis acutirostris), also known as the Paran Antwren, is a species of bird in the Thamnophilidae family. It is monotypic within the genus Stymphalornis, but possibly better included in Formicivora. It is endemic to marshes and swamps in the Brazilian states of Paran and Santa Catarina. A closely related and rather similar taxon has recently been discovered near So Paulo; it is already known by the common name So Paulo Antwren. A scientific description is currently being prepared. It is threatened by habitat loss and currently considered Endangered by BirdLife International.