Globe âș Birds âș Common grasshopper warbler
Common grasshopper warbler migration Locustella naevia
ⶠFollow the common grasshopper 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).
| Scientific name | Locustella naevia |
|---|---|
| Wingspan | 17 cm |
| IUCN status | Least concern |
| Records mapped | 275,863 (GBIF) |
| GPS / geolocator tracks | none with an open licence yet |
Facts from Wikidata Q208710 (CC0).
When does the common grasshopper warbler arrive in the UK?
A summer visitor in the records: sightings jump in mid April and fall away after early August.
Bars: this speciesâ share of all UK bird records in GBIF (CC0/CC BY), by month, scaled to the peak month. Based on 23,042 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
275,863 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 55°N) and furthest south in January (about 32°N).
Month by month: centre of records in Europe and Africa
| Month | Centre (latitude) | South of the Equator |
|---|---|---|
| January | 32°N | 0% |
| February | 55°N | 0% |
| March | 48°N | 0% |
| April | 49°N | 0% |
| May | 53°N | 0% |
| June | 55°N | 0% |
| July | 54°N | 0% |
| August | 49°N | 0% |
| September | 47°N | 0% |
| October | 45°N | 0% |
| November | 44°N | 0% |
| December | 40°N | 0% |
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 common grasshopper warbler
The common grasshopper warbler or just grasshopper warbler is a species of Old World warbler in the genus Locustella. It breeds across much of temperate Europe and the western Palearctic. It is migratory, wintering across northern tropical Africa just south of the Sahara, and also locally in India.
From the Wikipedia article âCommon grasshopper warblerâ (revision 1361101315), 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=2493548&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.