A new population of the Cone-billed Tanager Conothraupis mesoleuca, with information on the biology, behaviour and type locality of the species

Researchers have identified a new population of the Critically Endangered Cone-billed Tanager (Conothraupis mesoleuca) in Chapada dos Parecis, Mato Grosso, Brazil. This discovery, based on observations of at least 40 individuals, expands the known range of the species, which was previously thought to be limited to Emas National Park in Goiás. The study provides the first detailed information on the biology and behavior of this elusive bird, including descriptions of its habitat preferences—primarily flooded riverine areas—and the female's morphology. Historical records suggest that the type locality of the species may refer to the Juruena telegraph station, clarifying a long-standing ambiguity. This finding underscores the urgent need for further research on the species' biology and conservation status, given its restricted range and potential habitat availability in the upper Juruena basin.

CANDIA-GALLARDO, C. E., SILVEIRA, L. F., & AKEMI KUNIY, A. (2010). A new population of the Cone-billed Tanager Conothraupis mesoleuca, with information on the biology, behaviour and type locality of the species. Bird Conservation International, 20(2), 149–160. https://doi.org/10.1017/s0959270909990232