Vireo magister
Silhouette: Caleb Gordon · PhyloPic
In 3 days <5% in a week ~10%
The Yucatan vireo (Vireo magister) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found on Grand Cayman and in Belize, Honduras, and Mexico. It has once been documented as a vagrant in Texas.
The Yucatan vireo was originally described in 1871 as Vireosylvia magister. The Yucatan vireo's further taxonomy is unsettled. The IOC, AviList, and BirdLife International's Handbook of the Birds of the World assign it these four subspecies:
The Yucatan vireo, the red-eyed vireo (V. olivaceus) and several other vireos form a superspecies. This article follows the four-subspecies model. The Yucatan vireo is about 15 cm (5.9 in) long and weighs about 13.5 to 25 g (0.48 to 0.88 oz). The sexes have the same plumage. Adults of the nominate subspecies V. m. magister have a pale brownish white supercilium and brownish gray lores; the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arrecifes de Cozumel National Park | 🇲🇽 Mexico | |
| 2 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 3 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico |
Rare
Under 5% of wildlife watchers report a Yucatán Vireo sighting in Ría Lagartos Biosphere Reserve on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 180th most-seen of the 216 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Yucatán Vireo in Ría Lagartos Biosphere Reserve on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Yucatán Vireo sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Yucatán Vireo sightings, Ría Lagartos Biosphere Reserve ranks 3rd at under 5%. The best odds are in Arrecifes de Cozumel National Park (Mexico, about 50%) and Sian Ka'an Biosphere Reserve (Mexico, about 20%).
GBIF citizen-science records
It is estimated from how often the Yucatán Vireo is recorded against all the birds logged in Ría Lagartos Biosphere Reserve (12 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.
