Swallow-tailed Hummingbird

Eupetomena macroura

The swallow-tailed hummingbird is a species in the hummingbird family (Trochilidae), found mainly in east-central South America. Most authorities place it in the genus Eupetomena, although some place it in Campylopterus based on song and the thick shafts of the males' first primaries. Its common name and specific epithet both refer to the long, deeply forked, somewhat swallow-like tail. Source

Where it is now

In the last 8 weeks this bird was recorded 53,655 times across 6 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 July to 13°S in February, about 1,600 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.