Amazilia yucatanensis
Silhouette: PhyloPic
In 3 days ~50% in a week ~80%
The buff-bellied hummingbird (Amazilia yucatanensis) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Belize, Guatemala, Mexico, and the United States. The buff-bellied hummingbird is 10 to 11 cm (3.9 to 4.3 in) long and weighs 2.9 to 4.7 g (0.10 to 0.17 oz). Adult males have a rosy reddish bill that is dusky at the end; females' have more dark on the maxilla. Adult males of the nominate subspecies have metallic bronze green upperparts that are duller and darker on the crown. Their uppertail coverts are a mix of bronze green and cinnamon rufous. Their tail feathers are chestnut at the base and metallic bronze at the end. Their chin, throat, and chest are bright metallic yellowish emerald green and the vent area and undertail coverts are deep cinnamon rufous. The adult female is similar to the male but with a less iridescent back and throat. Its central tail feathers are mostly greenish bronze and the outer ones are mostly chestnut with greenish bronze edges... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 2 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | |
| 3 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 4 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 5 | Celestún Biosphere Reserve | 🇲🇽 Mexico | |
| 6 | Tikal National Park | 🇬🇹 Guatemala | |
| 7 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monterrey | 🇲🇽 México |
Possible
About 20% of wildlife watchers report a Buff-bellied Hummingbird sighting in Cañón del Sumidero National Park on a given day, based on 137 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 65th most-seen of the 243 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
March
In that month about 40% of wildlife watchers report a Buff-bellied Hummingbird in Cañón del Sumidero National Park on a given day, against about 10% in May to December, the lowest months. That is one of Cañón del Sumidero National Park's driest months, with about 15 mm of rain against 260 mm in June.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Buff-bellied Hummingbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 7 parks where we can rate Buff-bellied Hummingbird sightings, Cañón del Sumidero National Park has the highest daily chance: about 20%. Next come Sian Ka'an Biosphere Reserve (Mexico, about 20%) and Calakmul Biosphere Reserve (Mexico, about 10%).
GBIF citizen-science records
It is estimated from how often the Buff-bellied Hummingbird is recorded against all the birds logged in Cañón del Sumidero National Park (137 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.
