Rock Wren

Salpinctes obsoletus

The rock wren is a small songbird of the wren family native to the rocky areas of western North America. There are 8 subspecies of the rock wren, one of which is extinct. They are similar in size to other wrens, with a grey-brown coat, a brown rump, and a speckled white throat. Source

Where it is now

In the last 8 weeks this bird was recorded 332,167 times across 30 areas (each area is a 5 degree square).

See the Rock Wren on the live map

Movement and weather

Each season it is first heard regularly where daytime highs are around 21°C (typically 18 to 28°C, from 15 areas).

Over the weeks it was present in the past year, its centre in North America ranged from 23°N in September to 38°N in August, about 1,700 km apart.

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.