Common swift that resemble a crescent or a boomerang. Their call is a loud scream in two different tone pitches, the higher of which issues from the female. They often form 'screaming parties' during summer evenings, when 10–20 swifts will gather in flight around their nesting area, calling out and being answered by nesting swifts. Larger "screaming parties" are formed at higher altitudes, especially late in the breeding season. The purpose of these parties is uncertain, but may include ascending to sleep on the wing, while still breeding adults tend to spend the night in the nest. Swifts may nest in former
Carry On Screaming! fall into a boiling vat in the cellar, killing them both. Albert and Doris marry some time later, only to discover that Bung, whose home lacks electricity, is unable to return his wife to human form, and is now living with Valeria. Production of the film ran from 10 January 1966 to 25 February 1966; it was shot at Pinewood Studios and on location in Berkshire and Buckinghamshire. "Carry On Screaming" was the second film in the series to have a sung main title theme - and the last until "Carry On Emmanuelle" in 1978. The theme song "Carry On