Globe âș Birds âș Garden warbler
Garden warbler migration Sylvia borin
ⶠFollow the garden warbler across the big globe
Press ⶠto play the year. Line: a simplified typical route, joining the main cluster of GBIF records in each month (adjusted for observer effort).
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| Scientific name | Sylvia borin |
|---|---|
| Wingspan | 22 cm |
| IUCN status | Least concern |
| Records mapped | 1,033,080 (GBIF) |
| GPS / geolocator tracks | none with an open licence yet |
Facts from Wikidata Q202478 (CC0).
When does the garden warbler arrive in the UK?
A summer visitor in the records: sightings rise sharply from mid April, are near their peak by late April, and fall away after mid September.
Bars: this speciesâ share of all UK bird records in GBIF (CC0/CC BY), by month, scaled to the peak month. Based on 59,064 UK records. Weekly counts from the GBIF occurrence search API (country=GB). Dates are read from records, not from a survey, so treat them as a guide.
When do they arrive in and leave the UK? â
Migration in the data
1,033,080 GBIF records (CC0 and CC BY 4.0 licences only) are mapped here, in 1.41° grid cells, month by month.
In Europe and Africa, the centre of the records (adjusted for observer effort) is furthest north in June (about 56°N) and furthest south in December (about 4°S).
More than half of the effort-adjusted signal there is south of the Equator in: January, February, March, November, December.
Month by month: centre of records in Europe and Africa
| Month | Centre (latitude) | South of the Equator |
|---|---|---|
| January | 4°S | 54% |
| February | 1°S | 55% |
| March | 7°N | 54% |
| April | 39°N | 4% |
| May | 49°N | 2% |
| June | 56°N | 0% |
| July | 56°N | 0% |
| August | 51°N | 0% |
| September | 46°N | 2% |
| October | 35°N | 12% |
| November | 2°N | 53% |
| December | 4°S | 57% |
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 garden warbler
The garden warbler is a common and widespread small bird that breeds in most of Europe and in the Palearctic to western Siberia. It is a plain, long-winged and long-tailed warbler with brown upperparts and dull white underparts; the sexes are similar and juveniles resemble the adults. Its two subspecies differ only slightly and interbreed where their ranges overlap. âŠ
From the Wikipedia article âGarden warblerâ (revision 1359675141), 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=2492942&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.