Chaco Suiriri (Suiriri suiriri)
(aka Suiriri Flycatcher)
Chaco Suiriri, Barra do Quaraí, Rio Grande do Sul, Brazil, August 2004 - click for larger image Barra do Quaraí, Rio Grande do Sul, Brazil
August 2004

This and Campo Suiriri Suiriri affinis is currently treated as one species by the CBRO and most other authorities. However, this bird which, if split, would be called the Chaco Suiriri Suiriri suiriri differs from the Campo Suiriri Suiriri affinis in having an olive-grey rump, a grey belly and a thin grey tip to the tail. It also sits more vertically when perched.

Chaco Suiriri, Barra do Quaraí, Rio Grande do Sul, Brazil, August 2004 - click for larger image However in a recent paper, it is suggested that S. affinis should be treated as a sub-species of S. suiriri. The paper also describes a second species, Chapada Flycatcher Suiriri islerorum, see:
Kevin J. Zimmer, Andrew Whittaker & David C. Oren,
"A cryptic new species of flycatcher (Tyrannidae: Suiriri) from the cerrado region of central South America
The Auk 118, 1 (2001): 56-78
Chaco Suiriri, Barra do Quaraí, Rio Grande do Sul, Brazil, August 2004 - click for larger image The Chaco Suiriri is found from Argentina to eastern Bolivia while the Suiriri Flycatcher lives in the cerrado of Brazil.

There is an illustration in Ridgely & Tudor, Volume 2, Plate 31
Chaco Suiriri, Barra do Quaraí, Rio Grande do Sul, Brazil, August 2004 - click for larger image
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