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Chimney swift migration Chaetura pelagica

line = simplified typical route through the year (from GBIF records) · arrows = direction of travel
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▶ Follow the chimney swift across the big globe

Press ▶ to play the year. Line: a simplified typical route, joining the main cluster of GBIF records in each month (adjusted for observer effort).

Chimney swift
Photo: Adam Jackson, CC0, via Wikimedia Commons
Scientific nameChaetura pelagica
Adult weight23.6 g (adult)
IUCN statusVulnerable
Records mapped3,869,303 (GBIF)
GPS / geolocator tracksnone with an open licence yet

Facts from Wikidata Q912863 (CC0).

Migration in the data

3,869,303 GBIF records (CC0 and CC BY 4.0 licences only) are mapped here, in 1.41° grid cells, month by month.

In the Americas, the centre of the records (adjusted for observer effort) is furthest north in August (about 38°N) and furthest south in December (about 14°S).

More than half of the effort-adjusted signal there is south of the Equator in: January, February, December.

Month by month: centre of records in the Americas
MonthCentre (latitude)South of the Equator
January8°S87%
February2°S56%
March26°N5%
April33°N0%
May37°N0%
June38°N0%
July38°N0%
August38°N0%
September36°N0%
October34°N0%
November6°N40%
December14°S90%

Tracked birds

No openly licensed (CC0 / CC BY) tracking data package for this species was found in the Movebank Data Repository yet, so only records are shown.

About the chimney swift

The chimney swift is a bird belonging to the swift family Apodidae. A member of the genus Chaetura, it is closely related to both Vaux's swift and Chapman's swift; in the past, the three were sometimes considered to be conspecific. It has no subspecies. The chimney swift is a medium-sized, sooty gray bird with very long, slender wings and very short legs. …

From the Wikipedia article “Chimney swift” (revision 1380658680), CC BY-SA 4.0.

Sources

GBIF occurrence records, licence CC0 1.0 or CC BY 4.0 only, observations only (no specimens), filtered with: taxonKey=4409023&license=CC0_1_0&license=CC_BY_4_0&occurrenceStatus=PRESENT&hasGeospatialIssue=false&basisOfRecord=HUMAN_OBSERVATION&basisOfRecord=MACHINE_OBSERVATION&basisOfRecord=OBSERVATION. Monthly queries: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec. GBIF.org (23 October 2026) occurrence data accessed via the GBIF API; a GBIF download DOI is still to be added. Contributing datasets.