Chestnut-capped Brushfinch

Arremon brunneinucha

Chestnut-capped Brushfinch (Arremon brunneinucha)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

The chestnut-capped brushfinch is a species of bird in the family Passerellidae, the New World sparrows. It is found from Mexico to Peru. Source

Where it is now

In the last 8 weeks this bird was recorded 24,612 times across 11 areas (each area is a 5 degree square).

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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.

RegionFirst arrivalLast arrivalTypical peakAreas
North America15 June 202621 September 202615 June 20262
South America22 June 202622 June 20265 October 20261

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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.