First recorded

Swifts are migratory birds. They are summer visitors to the UK. Nature's Calendar monitors how early or late swifts arrive in the UK in spring.

In a location that you monitor regularly (at least once a week), record the date that you first see a live, active swift after their winter absence. This is usually towards late April.

Available historic data: we have very good data from 1907-1999 (6484 records)