Bullock's Oriole

Icterus bullockii

Bullock's oriole is a small New World blackbird. At one time, this species and the Baltimore oriole were considered to be a single species, the northern oriole. This bird is named after William Bullock, an English amateur naturalist. Source

Where it is now

In the last 8 weeks this bird was recorded 762 times across 16 areas (each area is a 5 degree square).

See the Bullock's Oriole on the live map

Movement and weather

Each season it is first heard regularly where daytime highs are around 20°C (typically 18 to 26°C, from 20 areas).

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.