Canyon Wren

Catherpes mexicanus

The canyon wren is a small North American songbird of the wren family Troglodytidae. A non-migratory species, these birds are found throughout western North America in dry, rocky environments such as cliffs, outcrops, and canyons. It is a small bird that is hard to see on its rocky habitat, and is often located by its loud distinctive song. It is currently in a monotypic taxon and is the only species in the genus Catherpes. Source

Where it is now

In the last 8 weeks this bird was recorded 33,294 times across 24 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 21°C (typically 15 to 29°C, from 5 areas). That range is wide, so temperature alone does not explain when it turns up.

Over the weeks it was present in the past year, its centre in North America ranged from 19°N in June to 35°N in August, about 1,800 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.