Selasphorus heloisa
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~20% in a week ~50%
The bumblebee hummingbird (Selasphorus heloisa) is a species of hummingbird in tribe Mellisugini of subfamily Trochilinae, the "bee hummingbirds". It is endemic to Mexico, but has occurred as a vagrant in the United States.
The International Ornithological Committee (IOC), the North American Classification Committee of the American Ornithological Society, and the Clements taxonomy place the bumblebee hummingbird in genus Selasphorus. BirdLife International's Handbook of the Birds of the World (HBW) places it in genus Atthis.
The bumblebee hummingbird is 5.9 to 7.5 cm (2.3 to 3.0 in) long and weighs 2 to 2.7 g (0.071 to 0.095 oz); it is one of the smallest hummingbirds. Both sexes of both subspecies have a short, straight, blackish bill and a small white spot behind the eye.
Males of the nominate subspecies have metallic bronze green to golden bronze upperparts. Their gorget is metallic magenta purple to bluish purple at its edges, and its longer hindward feathers flare out and back. The flanks... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toluca | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México | |
| 3 | Puebla | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Heloise's Hummingbird sighting in Toluca on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 79th most-seen of the 118 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
September
In that month about 50% of wildlife watchers report a Heloise's Hummingbird in Toluca on a given day, against under 5% in July–August and October–May, the lowest months. That is one of Toluca's wettest months, with about 150 mm of rain against 5 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Heloise's 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 3 cities where we can rate Heloise's Hummingbird sightings, Toluca has the highest daily chance: about 10%. Next come Mexico City (México, under 5%) and Puebla (México, under 5%).
Same genus: Selasphorus
The closest relatives of the Heloise's Hummingbird that you can see in Toluca (genus Selasphorus, Rufous, Allen's, and Allied Hummingbirds) are Broad-tailed Hummingbird (about 20%) and Rufous Hummingbird (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Heloise's Hummingbird is recorded against all the birds logged in Toluca (16 verified sightings), 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.
