When do Sandwich terns arrive in and leave the UK?

A summer visitor in the records: sightings rise sharply from late March, are near their peak by late June, and fall away after mid October.

When do Sandwich terns arrive in the UK?

In the GBIF records, UK sightings of the Sandwich tern rise sharply from late March and are near their peak by late June.

When do Sandwich terns leave the UK?

UK sightings fall away after mid October.

Sandwich tern in the UK, month by month

Bars: this species’ share of all UK bird records in GBIF (CC0/CC BY 4.0 only), by month, scaled to the peak month. Based on 91,570 UK records (occurrence search API, country=GB, weekly). Dates come from sightings, not a survey, so treat them as a guide.

See the Sandwich tern migration on the 3D globe →

About the Sandwich tern

The Sandwich tern is a tern in the family Laridae. It is very closely related to the lesser crested tern, Chinese crested tern, Cabot's tern, and elegant tern and has been known to interbreed with both elegant and lesser crested terns. …

From the Wikipedia article “Sandwich tern” (revision 1371756884), CC BY-SA 4.0, shortened at a sentence end. Winter/summer areas: country containing the monthly hotspot of effort-adjusted GBIF records, using Natural Earth boundaries (public domain).

Other UK summer visitors: see the full list with arrival and departure dates.