Rusty-backed Antwren (Formicivora rufa) - HBW 8, p. 615
French: Grisin roux
Spanish: Hormiguerito Dorsirrufo
Taxonomy: Myiothera rufa Wied, 1831, interior of Bahia, Brazil.
Morphological, vocal and molecular studies indicate that, with exception of F. iheringi, all species placed in current genus form a well-defined group. According to recent extensive morphological and vocal study, present species is closest to F. grisea and Stymphalornis acutirostris; close relationship to former also supported by genetic study. Plumage variation occurs within races as currently defined, and nominate race and chapmani possibly intergrade; also, possible regional variation in vocal repertoires; further study needed. Three subspecies recognized.
Subspecies and Distribution:
- urubambae J. T. Zimmer, 1932 - E Peru (locally on E foothills of Andes in San Martín and Cuzco).
- chapmani Cherrie, 1916 - S Surinam and EC Brazil (locally in Amapá, Pará, Maranhão and Piauí).
- rufa (Wied, 1831) - SC & E Brazil (S Amazonas and extreme E Acre E to C Mato Grosso and Goiás, and from coastal Pernambuco, S to Mato Grosso do Sul and N São Paulo) S to extreme SE Peru (extreme E Madre de Dios), E Bolivia (Beni, La Paz, NE Cochabamba, Santa Cruz), and C & NE Paraguay (locally along R Paraguay and in N Amambay).
- Least Concern Enlarge map
VideosSee all 9 videos
A male looking around on a branch and flying away Locality Pousada Aguapé, Pantanal, Mato Grosso do Sul State, Brazil (ssp rufa)
Josep del Hoyo 9 January 2005 5 years ago 22 sec 4.5
A male calling and shaking its tail Locality Emas National Park, Goiás State, Brazil (ssp rufa)
Josep del Hoyo 11 January 2005 6 years ago 46 sec 4.5
Two different views of a male calling Locality Emas National Park, Goiás State, Brazil (ssp rufa)
Josep del Hoyo 11 January 2005 6 years ago 37 sec 4.5
A couple in their territory. Locality Embiara Lodge, Nhecolândia, Pantanal, Mato Grosso do Sul State, Brazil (ssp rufa)
Carmelo López 13 November 2011 1 year ago 11 sec 4.2
Male and female perched and singing in their territory after playback of own vocalization recorded seconds before. Locality Miranda, Pantanal, Mato Grosso do Sul State, Brazil
Antonio Silveira 1 June 2005 1 year ago 33 sec 4
A brief view of a male on a tree and flying away Locality Itirapina, São Paulo State, Brazil (ssp rufa)
Josep del Hoyo 7 January 2005 6 years ago 2 sec 3.4
PhotosSee all 7 photos
A male perched on top of a bush.
Locality Embiara Lodge, Nhecolândia, Pantanal, Mato Grosso do Sul State, Brazil (ssp rufa)
Carmelo López 13 November 2011 1 year ago 4
Papa formiga vermelha
Locality Aquidauna, Pantanal, Mato Grosso do Sul State, Brazil
Lindolfo Souto 16 August 2013 9 weeks ago 3.9
Adult male in a tree.
Locality Quebrada Upaquihua, Tarapoto, San Martín Department, Peru (ssp urubambae)
Christophe Gouraud 24 June 2013 4 weeks ago 3.7
male at Santa Rita do Tocantins, Fazenda Morro Alto
Locality Santa Rita do Tocantins, Tocantins State, Brazil
Rene Santos 10 September 2012 16 weeks ago 3.6
A male perching on the twig
Locality Passo do Lontra, Pantanal, Mato Grosso do Sul State, Brazil
Tadeusz Stawarczyk 10 August 2010 2 years ago 3.2
a female call a nearby male
Locality Transpantaneira Road, Pantanal, Mato Grosso State, Brazil
Juan Carlos Marín 1 September 2008 4 years ago 3