Yellow-bellied Seedeater

Sporophila nigricollis

The yellow-bellied seedeater is a species of bird in the family Thraupidae, the tanagers and allies. It is found in Costa Rica, Panama, on Trinidad, in the Lesser Antilles, and in every South American country except Chile and Uruguay. However, it has been found in Argentina only as a vagrant and reports from Paraguay are unconfirmed. Source

Where it is now

In the last 8 weeks this bird was recorded 20,968 times across 7 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 21°S in January to 7°N in July, about 3,200 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.