The dawn chorus is a period of vocalization that occurs during twilight before the sun rises.
The dawn chorus is a prominent acoustic display that begins during the twilight period characterized by a high rate of vocalization by many species. Whereas the most studied species are birds, mammals, insects, and anurans also may chorus at dawn. The focus of the entry is on birds with a summary of other species at the end. The order in which participating species begin to chorus is predictable. In resident species, the dawn chorus may occur year-round, whereas, in migratory species, the dawn chorus begins within the first weeks following arrival on the breeding grounds.
Research on the Dawn Chorus
Due to the striking nature of the cacophony of chorusing species at daybreak, the dawn chorus has been described historically for its beauty. Research on the dawn chorus began in earnest in the 1900s with efforts to characterize the timing...
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