Carolina Wren

Thryothorus ludovicianus

The Carolina wren is a species of wren common in the eastern United States, the extreme south of Ontario, Canada, the northeast and southeast of Mexico, and into northern Central America. Severe winters restrict the northern limits of their range, while favorable weather conditions lead to a northward extension of their breeding range. Their preferred habitat is in dense cover in forest, farm edges, and suburban areas. This wren is the state bird of South Carolina. Source

Where it is now

In the last 8 weeks this bird was recorded 16,477,326 times across 35 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 23°C (typically 10 to 25°C, from 5 areas). That range is wide, so temperature alone does not explain when it turns up.

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.