Abstract

Based on field surveys, we report new distribution data of Fulvous Whistling-duck, Dendrocygna bicolor (Vieillot, 1816), from the state of Rondônia, southwestern Amazon, Brazil. This is the first record of D. bicolor from Rondônia and extend the geographic distribution of this species by 946 km from São Fabiano, Mato Grosso state, Brazil, and 688 km from Trinidad, Bolivia. 

Highlights

  • Fulvous Whistling-duck, Dendrocygna bicolor (Vieillot, 1816), is a widely distributed species in tropical, subtropical, and temperate regions in the world (Hohman and Lee 2020)

  • Based on field surveys, we report new distribution data of Fulvous Whistling-duck, Dendrocygna bicolor (Vieillot, 1816), from the state of Rondônia, southwestern Amazon, Brazil

  • Barbosa et al | First record of Dendrocygna bicolor in Rondônia, Brazil. This is the first record of Dendrocygna bicolor from Rondônia, Brazil, extending the geographic distribution of this species by 946 km from São Fabiano, Mato Grosso, Brazil, and 688 km from Trinidad, Bolivia (Fig. 3)

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Summary

Introduction

Fulvous Whistling-duck, Dendrocygna bicolor (Vieillot, 1816), is a widely distributed species in tropical, subtropical, and temperate regions in the world (Hohman and Lee 2020). It is both a migratory or resident species throughout the year, depending on the region (Hohman and Lee 2020). The species inhabits swamps and open and flooded habitats, avoiding dense forests (Santiago 2006) and builds nests in palustrine vegetation or in hollows in trees (Santiago 2006). Females lay 8–14 eggs (Santiago 2006), and parental care is taken in turn by males and females (Jyotismita et al 2011). Females prefer males that are more ornated (Andersson 1994) and with fully developed plumage (Klint 1980; Weidmann 1990; Omland 1996). D. bicolor shows a high level of awareness, due to lower water levels, which increases the risk of being predated (Jyotismita et al 2011)

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