Black-billed Peppershrike

Cyclarhis nigrirostris

The black-billed peppershrike is a species of bird in the family Vireonidae. It is found in the Andes of Colombia and northern Ecuador. It inhabits subtropical or tropical moist montane forests and heavily degraded former forest. Source

Where it is now

In the last 8 weeks this bird was recorded 11,878 times across 2 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.

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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.