Chestnut-capped Warbler

Basileuterus delattrii

Chestnut-capped Warbler (Basileuterus delattrii)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

The chestnut-capped warbler is a species of bird in the family Parulidae, the New World warblers. It is found from Guatemala to Colombia and Venezuela. Source

Where it is now

In the last 8 weeks this bird was recorded 1,401 times across 7 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
South America30 March 202615 June 20266 July 20263

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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.