What are the chances of seeing a Chestnut-sided Shrike-Vireo in Reserva de la Biosfera Mariposa Monarca?
With luck
About 10% of wildlife watchers report a Chestnut-sided Shrike-Vireo sighting in Reserva de la Biosfera Mariposa Monarca on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 76th most-seen of the 103 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
When is the best time to see a Chestnut-sided Shrike-Vireo in Reserva de la Biosfera Mariposa Monarca?
March
In that month about 20% of wildlife watchers report a Chestnut-sided Shrike-Vireo in Reserva de la Biosfera Mariposa Monarca on a given day, against under 5% in May and October–January, the lowest months. That is one of Reserva de la Biosfera Mariposa Monarca's driest months, with about 35 mm of rain against 270 mm in July. April and June–September have too few records to rate.
What time of day is best to see a Chestnut-sided Shrike-Vireo?
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Chestnut-sided Shrike-Vireo sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Reserva de la Biosfera Mariposa Monarca the best place to see a Chestnut-sided Shrike-Vireo?
Among the best
Of the 2 parks where we can rate Chestnut-sided Shrike-Vireo sightings, Reserva de la Biosfera Mariposa Monarca ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in El Triunfo (Mexico, about 10%).
Which relatives of the Chestnut-sided Shrike-Vireo live in Reserva de la Biosfera Mariposa Monarca?
Same family: Vireonidae
The closest relatives of the Chestnut-sided Shrike-Vireo that you can see in Reserva de la Biosfera Mariposa Monarca (family Vireonidae, Vireos, Shrike-Babblers, and Erpornis) are Hutton's Vireo (about 20%) and Warbling Vireo (about 10%), with each one's daily chance of a sighting.
Where does the Chestnut-sided Shrike-Vireo sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Chestnut-sided Shrike-Vireo is recorded against all the birds logged in Reserva de la Biosfera Mariposa Monarca (10 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.
