Sibilant Sirystes
Sirystes sibilator
The sibilant sirystes is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, and Paraguay. Source
Where it is now
In the last 8 weeks this bird was recorded 491 times across 6 areas (each area is a 5 degree square).
See the Sibilant Sirystes on the live map
Movement and weather
Over the weeks it was present in the past year, its centre in South America ranged from 23°S in June to 13°S in August, about 1,100 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.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| South America | 1 June 2026 | 17 August 2026 | 10 August 2026 | 3 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.