Isabella and I have shown you a number of clockwork devices from the 17th, 18th, and 19th centuries. (See blogs here and here for examples & links).
This is a particular favorite of mine. It inspired one of the stories in Royally Ever After.
Image: Plate 53 of Birds of America by John James Audubon depicting Painted Finch (1827-1838), courtesy Wikipedia [edited].
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