Cyclarhis gujanensis
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The rufous-browed peppershrike (Cyclarhis gujanensis) is a passerine bird in the vireo family. It is widespread and often common in woodland, forest edge, and cultivation with some tall trees from Mexico and Trinidad south to Argentina and Uruguay.
The rufous-browed peppershrike was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it in the genus Tanagra and coined the binomial name Tanagra gujanensis. The specific epithet is derived from the type locality, the Guianas. Gmelin based his account on "Le verderoux" from French Guiana that had been described in 1778 by the French polymath Comte de Buffon in his multivolume Histoire Naturelle des Oiseaux. The rufous-browed peppershrike is now placed with the black-billed peppershrike in the genus Cyclarhis that was introduced in 1824 by William Swainson.
Twenty two subspecies are recognised: Wikipedia →
Rare
Under 5% of wildlife watchers report a Rufous-browed Peppershrike sighting in San José on a given day, based on 706 verified sightings from GBIF citizen-science data. It is the 87th most-seen of the 379 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September
In that month about 10% of wildlife watchers report a Rufous-browed Peppershrike in San José on a given day, against under 5% in October to August, the lowest months. That is one of San José's wettest months, with about 260 mm of rain against 20 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Rufous-browed Peppershrike sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
27th of 35
Of the 35 cities where we can rate Rufous-browed Peppershrike sightings, San José ranks 27th at under 5%. The best odds are in Fortaleza (Brazil, about 50%), Brasilia (Brazil, about 50%) and Natal (Brazil, about 50%).
Same family: Vireonidae
The closest relatives of the Rufous-browed Peppershrike that you can see in San José (family Vireonidae, Vireos, Shrike-Babblers, and Erpornis) are Yellow-green Vireo (about 10%), Philadelphia Vireo (about 10%) and Yellow-throated Vireo (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-browed Peppershrike is recorded against all the birds logged in San José (706 verified sightings), 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.
