Rufous-bellied antwren in 2012. Rufous-bellied antwren The rufous-bellied antwren ("Isleria guttata") is a species of bird in the family Thamnophilidae. It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. The bird's range is in the entire north of the Amazon Basin, from Venezuela in the west to the Brazilian state of Amapá to the east, but is not found south of the Amazon River. Its natural habitat is subtropical or tropical moist lowland forests. The rufous-bellied antwren was described and illustrated by the French ornithologist Louis Vieillot in 1824 and given the binomial name "Myrmothera guttata". The current genus "Isleria"
Iwokrama Forest degrees west longitude. The Iwokrama Forest is bordered to the west by the Pakaraima Mountains and to the east by the isolated highlands scattered through central-east Guyana, Suriname and French Guiana. It is also bordered by savannahs in the southwest and northeast of Guyana and southwestern Suriname. The Essequibo River forms the eastern boundary. The northern boundary is the Siparuni River. The Burro-Burro River runs through the centre, and most of its watershed is within the Forest. The area is covered with lowland tropical forest, and dominated by tall tropical trees with a dense canopy 20 to 30 metres (70