Editing Cuckoo clock (section)

==Characteristics==
{{more citations needed section|date=June 2020}}
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| footer    = Left: Mechanical cuckoo clock in the ''Bahnhäusle'' style. Right: [[Quartz clock|Quartz]] cuckoo clock with [[automaton]] [[Striking clock|striking]] eight.
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| image1    = Schlag Kuckucksuhr Beispiel 01.ogv
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| image2    = Cuckoo strikes the 8th hour.ogv
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[[File:One of two gedackt Cuckoo pipes.jpg|thumb|left|One of two gedackt Cuckoo pipes]]
[[File:cuckoo2.jpg|thumb|left|Sound producer]]
The design of a cuckoo clock is now conventional. Many are made in the "traditional style", which are made to hang on a wall. The classical or traditional type includes two subgroups; the carved ones, whose wooden cases are decorated with leaves, animals, etc., and a second one with cases in the shape of a chalet. They have an [[automaton]] of a bird that appears through a small trap door when the clock strikes. The cuckoo bird is activated by the clock movement as the clock strikes by means of an arm that is triggered on the hour and half hour.<ref>Archived at [https://ghostarchive.org/varchive/youtube/20211212/D7l1HKCwX5M Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20190518202207/https://www.youtube.com/watch?v=D7l1HKCwX5M&gl=US&hl=en Wayback Machine]{{cbignore}}: {{Citation |last=The American Cuckoo Clock Company |title=What Makes the Cuckoo Clock Bird Move? |date=2019-03-03 |url=https://www.youtube.com/watch?v=D7l1HKCwX5M |access-date=2019-03-24}}{{cbignore}}</ref>

There are two kinds of movements: one-day (30-hour) and eight-day clockworks. Some have musical devices, and play a tune on a Swiss [[music box]] after striking the hours and half-hours. Usually the melody sounds only at full hours in eight-day clocks and both at full and half hours in the one-day timepieces. Musical cuckoo clocks frequently have other automata which move when the music box plays. Today's cuckoo clocks are almost always weight driven. The weights are made of cast iron usually in a [[pine cone]] shape and the "cuckoo" sound is created by two tiny [[gedackt]] pipes in the clock, with [[bellows]] attached to their tops. The clock's movement activates the bellows to send a puff of air into each pipe alternately when the timekeeper strikes.<ref>{{Cite web |last=Stamp |first=Jimmy |title=The Past, Present, and Future of the Cuckoo Clock |url=https://www.smithsonianmag.com/arts-culture/the-past-present-and-future-of-the-cuckoo-clock-65073025/ |access-date=2021-01-11 |website=Smithsonian Magazine |language=en}}</ref>

Since the 1970s,<ref>{{Cite web |title=1977 Citizen Wooden Cuckoo Clock, wedding gift (trans. from Japanese) |url=https://retroclock.jp/ca8/374/|access-date=2022-08-02 |website=retroclock.jp |language=Japanese}}</ref> [[quartz clock|quartz]] battery-powered cuckoo clocks have become available. As with their mechanical counterparts, the cuckoo bird emerges from its enclosure and moves up and down, but often on the quartz timepieces it also flaps its wings and open its beak while it sings. Just before the call, and in case it has a door, the single or double door opens and the bird emerges as usual, but only on the full hour, and they do not have a gong wire chime. The movement of the cuckoo in such clocks is regulated by an electromagnet that pulses on and off, attracting a weight, that acts as a [[Lever|fulcrum]], connected to the tail of the plastic cuckoo, thus moving the bird up and down in its enclosure.

In quartz cuckoos, different systems have been used to produce the bird's call; the usual bellows,<ref>{{Cite web |title=1979 Poppo cuckoo clock with the usual two bellows |url=https://syst.lendhourvary.site/index.php?main_page=product_info&products_id=4734 |access-date=2022-08-02 |website=lendhourvary.site |language=Japanese}}</ref> a digital recording of a real cuckoo in the wild (with a corresponding echo accompanied by the sound of a waterfall and other birds in the background) or a recording of the bird's call only. In musical versions, the hourly chime is followed by the replay of one of twelve popular melodies (one for each hour). Some musical quartz clocks in the [[chalet]] style also reproduce many of the popular automata found on mechanical musical clocks, such as beer drinkers, wood-choppers, and jumping deer.

Uniquely, quartz cuckoo clocks often include a sensor, so that when the lights are turned off at night they automatically silence the hourly chime. Others are pre-programmed not to strike between a set of pre-determined hours. Whether this is controlled by a light sensor or pre-programmed, the function is referred to as a "night silence" feature. On quartz wall clocks in the traditional style, the weights are conventionally cast in the shape of pine cones made of plastic rather than iron. The [[pendulum]] bob is often another carved leaf. Here, the weights and pendulum are purely ornamental as the clock is driven by battery power.