Anna's Hummingbird

Calypte anna

Anna's hummingbird is a North American species of hummingbird named after Anna Masséna, Duchess of Rivoli. Source

Where it is now

In the last 8 weeks this bird was recorded 9,222,040 times across 28 areas (each area is a 5 degree square).

See the Anna's Hummingbird on the live map

Movement and weather

Each season it is first heard regularly where daytime highs are around 24°C (typically 16 to 30°C, from 16 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 37°N in July to 48°N in March, about 1,100 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.

Download every area as CSV

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