First recorded

In a location that you monitor regularly (at least once a week), record the first time you see a live, active small tortoiseshell outdoors.

Overwinters as an adult, we are recording the first emergence dates of these adults.

Active very early in the year, specimens appear late March to early April.

There are two broods per year, observations made after the end of May are likely to be the offspring of the overwintering butterflies and should not be recorded.

Available historic data: we have some records for the following dates; 1907-1914, 1923-1955, and 1956-1999