Vireo osburni
Silhouette: Caleb Gordon · PhyloPic
In 3 days ~90% in a week >90%
The Blue Mountain vireo (Vireo osburni) is a Near Threatened species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is endemic to Jamaica. The Blue Mountain vireo was originally described in 1861 as Laletes osburni. Its specific epithet honors Mr. W. Osburn, who collected the type specimen.
The Blue Mountain vireo is monotypic. The Blue Mountain vireo is 12.5 to 15 cm (4.9 to 5.9 in) long and weighs about 20 to 22 g (0.71 to 0.78 oz). This is a rather robust vireo. The sexes have the same plumage. Adults have a mostly gray-brown head with a plain face and yellow-tinged off-white chin and throat. Their upperparts are gray-brown with an olive tinge from the middle of the back to the rump. Their primaries and secondaries are gray-brown with grayish green edges on the outer webs. Their rectrices are gray-brown with greenish edges on the outer webs. Their upper breast is mottled yellowish and grayish brown, their lower breast and belly yellowish white with faint grayish mottling, their flanks brighter yellow, and their vent yellowish white. They have a brown iris, a heavy bill with a blackish maxilla and a... Wikipedia →
Song0:25
Jamaica · 2016
© Ross Gallardy · XC308417 · CC BY-NC-SA 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue and John Crow Mountains National Park | 🇯🇲 Jamaica |
More parks will be added in future updates.
Likely
About 50% of wildlife watchers report a Blue Mountain Vireo sighting in Blue and John Crow Mountains National Park on a given day, based on 543 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 27th most-seen of the 91 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
March and November–December
In those months about 60% of wildlife watchers report a Blue Mountain Vireo in Blue and John Crow Mountains National Park on a given day, against about 40% in January, April and July–October, the lowest months. June has too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Blue Mountain 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.
Only Blue and John Crow Mountains National Park, in our data
Blue and John Crow Mountains National Park is the only park on Wallace's Line with enough records to rate Blue Mountain Vireo sightings: about 50% of wildlife watchers there report one on a given day.
Same genus: Vireo
The closest relatives of the Blue Mountain Vireo that you can see in Blue and John Crow Mountains National Park (genus Vireo, Vireos) are Jamaican Vireo (about 70%) and Black-whiskered Vireo (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Mountain Vireo is recorded against all the birds logged in Blue and John Crow Mountains National Park (543 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.
