Vireolanius leucotis
Silhouette: Sheatherius · PhyloPic
In 3 days ~40% in a week ~70%
The slaty-capped shrike-vireo (Vireolanius leucotis) 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.
The slaty-capped shrike-vireo was originally described in 1838 as Malaconotus leucotis. It was eventually placed in genus Vireolanius but for a time in the early twentieth century it was placed in genus Smaragdolanius and its own family, Vireolaniidae. By the 1970s Smaragdolanius had been merged into Vireolanius and included in the family Vireonidae.
The slaty-capped shrike-vireo's further taxonomy is unsettled. The IOC, the Clements taxonomy, and AviList assign it these four subspecies: Clements recognizes that it is distinctive within the larger species by calling it the "slaty-capped shrike-vireo (pale-legged)... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 2 | Amboró National Park | 🇧🇴 Bolivia | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 5 | Tambopata National Reserve | 🇵🇪 Peru |
Possible
About 20% of wildlife watchers report a Slaty-capped Shrike-Vireo sighting in Farallones de Cali National Natural Park on a given day, based on 656 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 86th most-seen of the 542 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July and September
In those months about 30% of wildlife watchers report a Slaty-capped Shrike-Vireo in Farallones de Cali National Natural Park on a given day, against about 10% in April–May and October–November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Slaty-capped Shrike-Vireo sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 parks where we can rate Slaty-capped Shrike-Vireo sightings, Farallones de Cali National Natural Park has the highest daily chance: about 20%. Next come Amboró National Park (Bolivia, under 5%) and Manu National Park (Peru, under 5%).
Same family: Vireonidae
The closest relatives of the Slaty-capped Shrike-Vireo that you can see in Farallones de Cali National Natural Park (family Vireonidae, Vireos, Shrike-Babblers, and Erpornis) are Black-billed Peppershrike (about 20%), Red-eyed Vireo (about 10%) and Brown-capped Vireo (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slaty-capped Shrike-Vireo is recorded against all the birds logged in Farallones de Cali National Natural Park (656 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
