Rufous-bellied Thrush

Turdus rufiventris

The rufous-bellied thrush is a songbird of the thrush family (Turdidae). Its distribution covers most of eastern and southeastern Brazil from the states of Maranhão south to Rio Grande do Sul, Bolivia, Paraguay, Uruguay, and central regions of Argentina. Source

Where it is now

In the last 8 weeks this bird was recorded 211,288 times across 13 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 30°C (typically 25 to 32°C, from 8 areas).

Over the weeks it was present in the past year, its centre in South America ranged from 29°S in December to 13°S in February, about 1,800 km apart.

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.