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
Screaming the Expressionist artist Edvard Munch between 1893 and 1910. "Der Schrei der Natur" ("The Scream of Nature") is the title Munch gave to these works, all of which show a figure with an agonized expression against a landscape with a tumultuous orange sky. Arthur Lubow has described "The Scream" as "an icon of modern art, a Mona Lisa for our time." In music there are long traditions of scream in rock, punk rock, heavy metal, rock and roll and emo music. Vocalists are developing various techniques of screaming that results in different ways of screaming. In rock and metal music