Purple martin migration Progne subis
▶ Follow the purple martin 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).
| Scientific name | Progne subis |
|---|---|
| Adult weight | 48 g (adult) |
| IUCN status | Least concern |
| Records mapped | 2,158,480 (GBIF) |
| GPS / geolocator tracks | none with an open licence yet |
Facts from Wikidata Q1062485 (CC0).
Migration in the data
2,158,480 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 July (about 39°N) and furthest south in November (about 9°S).
More than half of the effort-adjusted signal there is south of the Equator in: November, December.
Month by month: centre of records in the Americas
| Month | Centre (latitude) | South of the Equator |
|---|---|---|
| January | 8°N | 42% |
| February | 24°N | 13% |
| March | 29°N | 5% |
| April | 34°N | 1% |
| May | 38°N | 0% |
| June | 38°N | 0% |
| July | 39°N | 0% |
| August | 38°N | 0% |
| September | 27°N | 6% |
| October | 9°N | 37% |
| November | 9°S | 85% |
| December | 7°S | 90% |
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 purple martin
The purple martin is a passerine bird in the swallow family Hirundinidae. It is the largest swallow in North America. They breed across the eastern United States and southeastern Canada, as well as the coastal Pacific Northwest, Baja California, Arizona, and New Mexico. …
From the Wikipedia article “Purple martin” (revision 1376216142), 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=2489129&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.