Euler's Flycatcher

Lathrotriccus euleri

Euler's flycatcher is a small passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found on Trinidad and in every mainland South American country except Chile. It formerly was found on Grenada. Source

Where it is now

In the last 8 weeks this bird was recorded 3,681 times across 13 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 27°S in February to 6°S in December, about 2,300 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.