This is the largest swift found in the UK.

Males have plain white forewings and hindwings. Females have a yellow/orange forewing.

Flies at dusk and after dark. Groups of males can be seen flying over one spot releasing a goat-like scent.

Overwinters as a larva, maybe twice. Pupates underground among roots.

Grassy or weedy places, on open ground and in woodland rides and clearings.

Recorded in 86 (31.9%) of the 270 2km squares of Huntingdonshire.

Last recorded in July 2019

Recorded date range (Adult): 02 April to 23 August