Great Dusky Swift

Closest Relatives at Iguazú National Park

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Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

#	Park	Country	Probability
1	Iguaçu National Park	🇧🇷 Brazil	40–50%
2	Iguazú National Park	🇦🇷 Argentina	30–40%
3	Serra da Canastra National Park	🇧🇷 Brazil	20–30%
4	Chapada dos Guimarães National Park	🇧🇷 Brazil	<5%
5	Emas National Park	🇧🇷 Brazil	<5%
6	Parque Estadual Encontro das Águas	🇧🇷 Brazil	Insufficient data

Quick answers

What are the chances of seeing a Great Dusky Swift in Iguazú National Park?

About 37% of visitor-days record a Great Dusky Swift sighting in Iguazú National Park, based on 1569 observer-days of citizen-science data from GBIF.

When is the best time to see Great Dusky Swift in Iguazú National Park?

October has the highest sighting rate for Great Dusky Swift in Iguazú National Park in our monthly data.