Vermilion Flycatcher

Pyrocephalus rubinus

The scarlet flycatcher or austral vermilion flycatcher is a passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru, and Uruguay. Source

Where it is now

In the last 8 weeks this bird was recorded 2,359 times across 17 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 28°C (typically 25 to 30°C, from 5 areas). That holds across 35° of latitude, which suggests its timing follows temperature more than the calendar.

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.