Willis's antbird

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Willis's antbird
Cercomacroides laeta sabinoi - Belem antbird (male).jpg
male at Barra de São Miguel, Alagoas, Brazil
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Thamnophilidae
Genus: Cercomacroides
Species: C. laeta
Binomial name
Cercomacroides laeta
(Todd, 1920)

Cercomacra laeta

Willis's antbird (Cercomacroides laeta), also known as the laeta antbird, is a species of bird in the family Thamnophilidae. It is endemic to Brazil. It was formerly considered a subspecies of dusky antbird.

Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.

Willis's antbird was described by the American ornithologist W. E. Clyde Todd in 1920 as a subspecies of the dusky antbird and given the trinomial name Cercomacra tyrannina laeta.[2] A 1997 study found that Willis's antbird differed from the dusky antbird in both plumage and voice[3] and as a result, Willis's antbird was promoted to species status.[4] The common name commemorates the American ornithologist Edwin O’Neill Willis.[3] A molecular phylogenetic study published in 2014 found that Cercomacra was polyphyletic. The genus was split to create two monophyletic genera and six species including Willis's antbird were moved to the newly erected genus Cercomacroides.[4][5]


  1. ^ BirdLife International (2012). "Cercomacroides laeta". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Todd, W.E. Clyde (1920). "Descriptions of apparently new South American birds". Proceedings of the Biological Society of Washington. 33: 71–75 [73]. 
  3. ^ a b Bierregaard, R.O. Jr.; Cohn-Haft, M.; Stotz, D.F. (1997). "Cryptic biodiversity: an overlooked species and new subspecies of antbird (Aves: Formicariidae) with a revision of Cercomacra tyrannina in northeastern South America". Ornithological Monographs. 48: 111–128. JSTOR 40157530. 
  4. ^ a b Gill, Frank; Donsker, David, eds. (2017). "Antbirds". World Bird List Version 8.1. International Ornithologists' Union. Retrieved 30 January 2018. 
  5. ^ Tello, J.G.; Raposo, M.; Bates, J.M.; Bravo, G.A.; Cadena, C.D.; Maldonado-Coelho, M (2014). "Reassessment of the systematics of the widespread Neotropical genus Cercomacra (Aves: Thamnophilidae)". Zoological Journal of the Linnean Society. 170: 546–565. doi:10.1111/zoj.12116.