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The level of divergence is the highest of any genus of birds, being more typical of the divergence between genera or even families. The northern potoo was for a long time considered to be the same species as the common potoo, but the two species have now been separated on the basis of their calls. In spite of this there is no morphological way ...
The avifauna of Brazil include a total of 1861 confirmed species of which 239 are endemic. Five have been introduced by humans, 93 are rare or vagrants, and seven are known or thought to be extinct or extirpated. An additional 14 species are hypothetical (see below). Brazil hosts about 60% of the bird species recorded for all of South America ...
The Rio de Janeiro antwren is known only from the holotype and a few observations, and its taxonomy is unsettled. [2] The bird's discoverer, the South American Classification Committee of the American Ornithological Society, the International Ornithological Committee, and the Clements taxonomy consider it a full species.
The Rio de Janeiro antbird is 13 to 14 cm (5.1 to 5.5 in) long. Adult males are mostly gray, with darker upperparts and paler underparts. They have a white patch between their scapulars, a hidden white patch under the scapulars, and white tips on their wing coverts. Their tail is blackish gray with narrow white tips on the feathers.
Rio Suno antwren Conservation status Least Concern (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Passeriformes Family: Thamnophilidae Genus: Myrmotherula Species: M. sunensis Binomial name Myrmotherula sunensis Chapman, 1925 The Rio Suno antwren (Myrmotherula sunensis) is a species of bird in subfamily Thamnophilinae of family ...
Rio Negro gnatcatcher Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Passeriformes Family: Polioptilidae Genus: Polioptila Species: P. facilis Binomial name Polioptila facilis Zimmer, JT, 1942 The Rio Negro gnatcatcher (Polioptila facilis) is a species of bird in the family Polioptilidae. It is endemic to Brazil. Taxonomy and systematics The ...
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The Rio Branco antbird was described by the English ornithologists Philip Sclater and Osbert Salvin in 1873 and given its current binomial name Cercomacra carbonaria. [3] A 2014 study confirmed what had been earlier suggested, that the Rio Branco antbird and the Mato Grosso (C. melanaria), jet (C. nigricans), and Bananal (C. ferdinandi) antbirds form a clade within genus Cercomacra.