Uropsila leucogastra
Silhouette: Matt Wilkins · PhyloPic
In 3 days ~30% in a week ~60%
The white-bellied wren (Uropsila leucogastra) is a species of bird in the family Troglodytidae. It is found in Belize, Guatemala, Honduras, and Mexico. The white-bellied wren is the only member of genus Uropsila, but its taxonomy at the subspecies level is uncertain. Cornell qualifies their additions by noting that australis "may be separable" and that grisescens is "doubtfully valid" because it was based on soot-discolored specimens.
The white-bellied wren is 9.5 to 10 cm (3.7 to 3.9 in) long. Males weigh 9.8 to 10.5 g (0.35 to 0.37 oz) and females 8 to 9.1 g (0.28 to 0.32 oz). The nominate subspecies has a medium brown crown, upperparts, and tail; the rump is slightly reddish and the tail has many thin... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Tikal National Park | 🇬🇹 Guatemala | |
| 3 | Montes Azules Biosphere Reserve | 🇲🇽 Mexico | |
| 4 | Biotopo Cerro Cahuí | 🇬🇹 Guatemala | |
| 5 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 6 | Celestún Biosphere Reserve | 🇲🇽 Mexico |
With luck
About 10% of wildlife watchers report a White-bellied Wren sighting in Montes Azules Biosphere Reserve on a given day, based on 31 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 120th most-seen of the 240 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report a White-bellied Wren in Montes Azules Biosphere Reserve on a given day, against under 5% in July and December–January, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most White-bellied Wren sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 parks where we can rate White-bellied Wren sightings, Montes Azules Biosphere Reserve ranks 3rd at about 10%. The best odds are in Calakmul Biosphere Reserve (Mexico, about 30%) and Tikal National Park (Guatemala, about 30%).
Same family: Troglodytidae
The closest relatives of the White-bellied Wren that you can see in Montes Azules Biosphere Reserve (family Troglodytidae, Wrens) are Spot-breasted Wren (about 40%), Southern House Wren (about 30%) and White-breasted Wood-Wren (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-bellied Wren is recorded against all the birds logged in Montes Azules Biosphere Reserve (31 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.
