White-necked Thrush

Turdus albicollis

The white-necked thrush is a species of bird in the family Turdidae. It is found on Trinidad and Tobago and in every mainland South American country except Chile. It previously was called the white-necked robin. Source

Where it is now

In the last 8 weeks this bird was recorded 1,723 times across 12 areas (each area is a 5 degree square).

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Movement and weather

Over the weeks it was present in the past year, its centre in South America ranged from 25°S in May to 15°S in January, about 1,100 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.