Singing Swamp Sparrow (IMAGE)

Duke University

Singing Swamp Sparrow

Caption

The dawn chorus of birdsong may be a warm-up routine that helps birds meet the physical demands of singing and deliver their best performance later in the day.

Credit

Photo by Robert Lachlan, Royal Holloway, University of London

Usage Restrictions

Please credit Robert Lachlan, Royal Holloway, University of London

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