Slaty-capped Shrike-Vireo

Vireolanius leucotis

Slaty-capped Shrike-Vireo (Vireolanius leucotis)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

The slaty-capped shrike-vireo is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay. Source

Where is the Slaty-capped Shrike-Vireo now?

In the last 8 weeks it was recorded 310 times across 2 areas (each area is a 5 degree square).

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When does the Slaty-capped Shrike-Vireo arrive?

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 America14 September 202614 September 202619 October 20261

Download every area as CSV · Review these arrival dates (researchers, ORCID sign-in)

Arriving at the same time in South America

Every arrival in South America, month by month

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