Northern Pygmy-Owl

Glaucidium gnoma

The northern pygmy owl is a small owl native to western North America. Seven subspecies are accepted, of which three have sometimes been treated as separate species. Source

Where it is now

In the last 8 weeks this bird was recorded 32,933 times across 26 areas (each area is a 5 degree square).

See the Northern Pygmy-Owl on the live map

Movement and weather

Each season it is first heard regularly where daytime highs are around 6°C (typically 0 to 29°C, from 6 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 41°N in August to 57°N in February, 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.