Piratic Flycatcher

Legatus leucophaius

The piratic flycatcher is a passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found in Mexico, in every Central American country except El Salvador, in Trinidad and Tobago, and in every mainland South American country except Chile, though in Uruguay only as a vagrant. It has also occurred several times as a vagrant in the southern United States. Source

Where it is now

In the last 8 weeks this bird was recorded 31,748 times across 20 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 26 to 30°C, from 9 areas). That holds across 50° of latitude, which suggests its timing follows temperature more than the calendar.

Over the weeks it was present in the past year, its centre in South America ranged from 18°S in September to 7°N in June, about 2,900 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.